url stringclasses 147
values | commit stringclasses 147
values | file_path stringlengths 7 101 | full_name stringlengths 1 94 | start stringlengths 6 10 | end stringlengths 6 11 | tactic stringlengths 1 11.2k | state_before stringlengths 3 2.09M | state_after stringlengths 6 2.09M | input stringlengths 73 2.09M |
|---|---|---|---|---|---|---|---|---|---|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/Mathlib/Partitions.lean | Partition.card_of_partition'' | [186, 1] | [207, 20] | exact hs' ↑u u rfl huc hau | case h.a.mp.intro
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
huc : u ∈ c
hau : a ∈ u
⊢ ↑u = ↑t | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case h.a.mp.intro
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
huc : u ∈ c
hau : a ∈ u
⊢ ↑u = ↑t
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/Mathlib/Partitions.lean | Partition.card_of_partition'' | [186, 1] | [207, 20] | intro hut | case h.a.mpr
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
⊢ u = t → u ∈ c ∧ a ∈ u | case h.a.mpr
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
hut : u = t
⊢ u ∈ c ∧ a ∈ u | Please generate a tactic in lean4 to solve the state.
STATE:
case h.a.mpr
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
⊢ u = t → u ∈ c ∧ a ∈ u
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/Mathlib/Partitions.lean | Partition.card_of_partition'' | [186, 1] | [207, 20] | rw [hut] | case h.a.mpr
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
hut : u = t
⊢ u ∈ c ∧ a ∈ u | case h.a.mpr
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
hut : u = t
⊢ t ∈ c ∧ a ∈ t | Please generate a tactic in lean4 to solve the state.
STATE:
case h.a.mpr
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
hut : u = t
⊢ u ∈ c ∧ a ∈ u
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/Mathlib/Partitions.lean | Partition.card_of_partition'' | [186, 1] | [207, 20] | exact ⟨ht, has⟩ | case h.a.mpr
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
hut : u = t
⊢ t ∈ c ∧ a ∈ t | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case h.a.mpr
α : Type u_1
inst✝¹ : DecidableEq α
inst✝ : Fintype α
c : Finset (Finset α)
hc : Setoid.IsPartition {s | ∃ t, s = ↑t ∧ t ∈ c}
a : α
t : Finset α
ht : t ∈ c
has : a ∈ ↑t
hs' : ∀ (y : Set α) (x : Finset α), y = ↑x → x ∈ c → a ∈ y → y = ↑t
u : Finset α
hut : u = t
⊢ t ∈ c ∧ a ∈ t
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_subgroupOf_eq | [34, 1] | [35, 89] | rw [← Subgroup.comap_subtype, Subgroup.comap_map_eq, Subgroup.ker_subtype, sup_bot_eq] | α : Type ?u.335
G : Type u_1
H : Type ?u.341
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
K : Subgroup ↥N
⊢ subgroupOf (map (Subgroup.subtype N) K) N = K | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type ?u.335
G : Type u_1
H : Type ?u.341
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
K : Subgroup ↥N
⊢ subgroupOf (map (Subgroup.subtype N) K) N = K
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | MulAction.stabilizer_subgroupOf_eq | [38, 1] | [43, 6] | ext n | α : Type u_2
G : Type u_1
H : Type ?u.1696
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
a : α
⊢ stabilizer (↥N) a = Subgroup.subgroupOf (stabilizer G a) N | case h
α : Type u_2
G : Type u_1
H : Type ?u.1696
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
a : α
n : ↥N
⊢ n ∈ stabilizer (↥N) a ↔ n ∈ Subgroup.subgroupOf (stabilizer G a) N | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_2
G : Type u_1
H : Type ?u.1696
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
a : α
⊢ stabilizer (↥N) a = Subgroup.subgroupOf (stabilizer G a) N
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | MulAction.stabilizer_subgroupOf_eq | [38, 1] | [43, 6] | simp only [Subgroup.mem_subgroupOf, mem_stabilizer_iff] | case h
α : Type u_2
G : Type u_1
H : Type ?u.1696
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
a : α
n : ↥N
⊢ n ∈ stabilizer (↥N) a ↔ n ∈ Subgroup.subgroupOf (stabilizer G a) N | case h
α : Type u_2
G : Type u_1
H : Type ?u.1696
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
a : α
n : ↥N
⊢ n • a = a ↔ ↑n • a = a | Please generate a tactic in lean4 to solve the state.
STATE:
case h
α : Type u_2
G : Type u_1
H : Type ?u.1696
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
a : α
n : ↥N
⊢ n ∈ stabilizer (↥N) a ↔ n ∈ Subgroup.subgroupOf (stabilizer G a) N
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | MulAction.stabilizer_subgroupOf_eq | [38, 1] | [43, 6] | rfl | case h
α : Type u_2
G : Type u_1
H : Type ?u.1696
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
a : α
n : ↥N
⊢ n • a = a ↔ ↑n • a = a | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case h
α : Type u_2
G : Type u_1
H : Type ?u.1696
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
a : α
n : ↥N
⊢ n • a = a ↔ ↑n • a = a
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | constructor | α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K ≤ K' ↔ map f K ≤ map f K' | case mp
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K ≤ K' → map f K ≤ map f K'
case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ map f K ≤ map f K' → K ≤ K' | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K ≤ K' ↔ map f K ≤ map f K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | exact Subgroup.map_mono | case mp
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K ≤ K' → map f K ≤ map f K'
case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ map f K ≤ map f K' → K ≤ K' | case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ map f K ≤ map f K' → K ≤ K' | Please generate a tactic in lean4 to solve the state.
STATE:
case mp
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K ≤ K' → map f K ≤ map f K'
case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ map f K ≤ map f K' → K ≤ K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | intro h | case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ map f K ≤ map f K' → K ≤ K' | case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
⊢ K ≤ K' | Please generate a tactic in lean4 to solve the state.
STATE:
case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ map f K ≤ map f K' → K ≤ K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | intro x hx | case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
⊢ K ≤ K' | case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ x ∈ K' | Please generate a tactic in lean4 to solve the state.
STATE:
case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
⊢ K ≤ K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | suffices f x ∈ Subgroup.map f K' by
simp only [Subgroup.mem_map] at this
obtain ⟨y, hy, hx⟩ := this
rw [← hf hx]; exact hy | case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ x ∈ K' | case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ f x ∈ map f K' | Please generate a tactic in lean4 to solve the state.
STATE:
case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ x ∈ K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | apply h | case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ f x ∈ map f K' | case mpr.a
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ f x ∈ map f K | Please generate a tactic in lean4 to solve the state.
STATE:
case mpr
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ f x ∈ map f K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | rw [Subgroup.mem_map] | case mpr.a
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ f x ∈ map f K | case mpr.a
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ ∃ x_1 ∈ K, f x_1 = f x | Please generate a tactic in lean4 to solve the state.
STATE:
case mpr.a
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ f x ∈ map f K
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | exact ⟨x, hx, rfl⟩ | case mpr.a
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ ∃ x_1 ∈ K, f x_1 = f x | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case mpr.a
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
⊢ ∃ x_1 ∈ K, f x_1 = f x
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | simp only [Subgroup.mem_map] at this | α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
this : f x ∈ map f K'
⊢ x ∈ K' | α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
this : ∃ x_1 ∈ K', f x_1 = f x
⊢ x ∈ K' | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
this : f x ∈ map f K'
⊢ x ∈ K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | obtain ⟨y, hy, hx⟩ := this | α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
this : ∃ x_1 ∈ K', f x_1 = f x
⊢ x ∈ K' | case intro.intro
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx✝ : x ∈ K
y : G
hy : y ∈ K'
hx : f y = f x
⊢ x ∈ K' | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx : x ∈ K
this : ∃ x_1 ∈ K', f x_1 = f x
⊢ x ∈ K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | rw [← hf hx] | case intro.intro
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx✝ : x ∈ K
y : G
hy : y ∈ K'
hx : f y = f x
⊢ x ∈ K' | case intro.intro
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx✝ : x ∈ K
y : G
hy : y ∈ K'
hx : f y = f x
⊢ y ∈ K' | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx✝ : x ∈ K
y : G
hy : y ∈ K'
hx : f y = f x
⊢ x ∈ K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_iff_mono_of_injective | [49, 1] | [62, 23] | exact hy | case intro.intro
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx✝ : x ∈ K
y : G
hy : y ∈ K'
hx : f y = f x
⊢ y ∈ K' | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro
α : Type ?u.3330
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
h : map f K ≤ map f K'
x : G
hx✝ : x ∈ K
y : G
hy : y ∈ K'
hx : f y = f x
⊢ y ∈ K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_strict_mono_of_injective | [65, 1] | [69, 52] | simp only [lt_iff_le_not_le] | α : Type ?u.5373
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K < K' ↔ map f K < map f K' | α : Type ?u.5373
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K ≤ K' ∧ ¬K' ≤ K ↔ map f K ≤ map f K' ∧ ¬map f K' ≤ map f K | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type ?u.5373
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K < K' ↔ map f K < map f K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_strict_mono_of_injective | [65, 1] | [69, 52] | simp_rw [← Subgroup.map_iff_mono_of_injective hf] | α : Type ?u.5373
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K ≤ K' ∧ ¬K' ≤ K ↔ map f K ≤ map f K' ∧ ¬map f K' ≤ map f K | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type ?u.5373
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ K ≤ K' ∧ ¬K' ≤ K ↔ map f K ≤ map f K' ∧ ¬map f K' ≤ map f K
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | Subgroup.map_injective_of_injective | [72, 1] | [75, 71] | simp only [le_antisymm_iff, ← Subgroup.map_iff_mono_of_injective hf] | α : Type ?u.7056
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ map f K = map f K' ↔ K = K' | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type ?u.7056
G : Type u_2
H : Type u_1
inst✝² : Group G
inst✝¹ : Group H
inst✝ : MulAction G α
N : Subgroup G
f : G →* H
K K' : Subgroup G
hf : Function.Injective ⇑f
⊢ map f K = map f K' ↔ K = K'
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | rw [isPretransitive_iff_is_one_pretransitive] | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ IsPretransitive ↥(fixingSubgroup (↥(alternatingGroup α)) s) ↥(SubMulAction.ofFixingSubgroup (↥(alternatingGroup α)) s) | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ IsMultiplyPretransitive (↥(fixingSubgroup (↥(alternatingGroup α)) s))
(↥(SubMulAction.ofFixingSubgroup (↥(alternatingGroup α)) s)) 1 | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ IsPretransitive ↥(fixingSubgroup (↥(alternatingGroup α)) s) ↥(SubMulAction.ofFixingSubgroup (↥(alternatingGroup α)) s)
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | apply remaining_transitivity' | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ IsMultiplyPretransitive (↥(fixingSubgroup (↥(alternatingGroup α)) s))
(↥(SubMulAction.ofFixingSubgroup (↥(alternatingGroup α)) s)) 1 | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ IsMultiplyPretransitive (↥(alternatingGroup α)) α ?n
case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 1 + Set.ncard s ≤ ?n
case hn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ↑?n ≤ PartENat.card α
case n
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ℕ | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ IsMultiplyPretransitive (↥(fixingSubgroup (↥(alternatingGroup α)) s))
(↥(SubMulAction.ofFixingSubgroup (↥(alternatingGroup α)) s)) 1
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | apply IsMultiplyPretransitive.alternatingGroup_of_sub_two | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ IsMultiplyPretransitive (↥(alternatingGroup α)) α ?n
case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 1 + Set.ncard s ≤ ?n
case hn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ↑?n ≤ PartENat.card α
case n
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ℕ | case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 1 + Set.ncard s ≤ Fintype.card α - 2
case hn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ↑(Fintype.card α - 2) ≤ PartENat.card α | Please generate a tactic in lean4 to solve the state.
STATE:
case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ IsMultiplyPretransitive (↥(alternatingGroup α)) α ?n
case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 1 + Set.ncard s ≤ ?n
case hn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ↑?n ≤ PartENat.card α
case n
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ℕ
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | have h1' : 2 < Set.ncard (sᶜ : Set α) := by
apply lt_of_le_of_lt _ hα
rw [Nat.succ_le_iff, Set.one_lt_ncard_iff_nontrivial]
exact h0 | case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 1 + Set.ncard s ≤ Fintype.card α - 2 | case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
h1' : 2 < Set.ncard sᶜ
⊢ 1 + Set.ncard s ≤ Fintype.card α - 2 | Please generate a tactic in lean4 to solve the state.
STATE:
case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 1 + Set.ncard s ≤ Fintype.card α - 2
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | rw [add_comm, ← Nat.card_eq_fintype_card, ← Set.ncard_add_ncard_compl s,
Nat.add_sub_assoc (le_of_lt h1'), add_le_add_iff_left] | case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
h1' : 2 < Set.ncard sᶜ
⊢ 1 + Set.ncard s ≤ Fintype.card α - 2 | case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
h1' : 2 < Set.ncard sᶜ
⊢ 1 ≤ Set.ncard sᶜ - 2 | Please generate a tactic in lean4 to solve the state.
STATE:
case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
h1' : 2 < Set.ncard sᶜ
⊢ 1 + Set.ncard s ≤ Fintype.card α - 2
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | apply Nat.le_sub_of_add_le | case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
h1' : 2 < Set.ncard sᶜ
⊢ 1 ≤ Set.ncard sᶜ - 2 | case hmn.h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
h1' : 2 < Set.ncard sᶜ
⊢ 1 + 2 ≤ Set.ncard sᶜ | Please generate a tactic in lean4 to solve the state.
STATE:
case hmn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
h1' : 2 < Set.ncard sᶜ
⊢ 1 ≤ Set.ncard sᶜ - 2
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | exact h1' | case hmn.h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
h1' : 2 < Set.ncard sᶜ
⊢ 1 + 2 ≤ Set.ncard sᶜ | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case hmn.h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
h1' : 2 < Set.ncard sᶜ
⊢ 1 + 2 ≤ Set.ncard sᶜ
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | apply lt_of_le_of_lt _ hα | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 2 < Set.ncard sᶜ | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 2 ≤ Set.ncard s | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 2 < Set.ncard sᶜ
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | rw [Nat.succ_le_iff, Set.one_lt_ncard_iff_nontrivial] | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 2 ≤ Set.ncard s | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ Set.Nontrivial s | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ 2 ≤ Set.ncard s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | exact h0 | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ Set.Nontrivial s | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ Set.Nontrivial s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | rw [PartENat.card_eq_coe_fintype_card] | case hn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ↑(Fintype.card α - 2) ≤ PartENat.card α | case hn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ↑(Fintype.card α - 2) ≤ ↑(Fintype.card α) | Please generate a tactic in lean4 to solve the state.
STATE:
case hn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ↑(Fintype.card α - 2) ≤ PartENat.card α
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.isPretransitive_ofFixingSubgroup | [86, 1] | [102, 81] | simp only [Nat.cast_le, tsub_le_iff_right, le_add_iff_nonneg_right, zero_le] | case hn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ↑(Fintype.card α - 2) ≤ ↑(Fintype.card α) | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case hn
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
h0 : Set.Nontrivial s
hα : Set.ncard s < Set.ncard sᶜ
⊢ ↑(Fintype.card α - 2) ≤ ↑(Fintype.card α)
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | obtain ⟨a, ha⟩ := hs | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nontrivial sᶜ
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | case intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hsc : Set.Nontrivial sᶜ
a : α
ha : a ∈ s
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nontrivial sᶜ
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | obtain ⟨b, hb, c, hc, hbc⟩ := hsc | case intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hsc : Set.Nontrivial sᶜ
a : α
ha : a ∈ s
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∈ sᶜ
c : α
hc : c ∈ sᶜ
hbc : b ≠ c
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | Please generate a tactic in lean4 to solve the state.
STATE:
case intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hsc : Set.Nontrivial sᶜ
a : α
ha : a ∈ s
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | rw [Set.mem_compl_iff] at hb hc | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∈ sᶜ
c : α
hc : c ∈ sᶜ
hbc : b ≠ c
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∈ sᶜ
c : α
hc : c ∈ sᶜ
hbc : b ≠ c
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | have hac : a ≠ c := by intro h; apply hc; rw [← h]; exact ha | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | have hab : a ≠ b := by intro h; apply hb; rw [← h]; exact ha | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | intro h | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
⊢ False | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | apply hc | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
⊢ False | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
⊢ c ∈ s | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
⊢ False
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | let g := Equiv.swap a b * Equiv.swap a c | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
⊢ c ∈ s | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ c ∈ s | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
⊢ c ∈ s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | have hg : g ∈ alternatingGroup α :=
by
rw [Equiv.Perm.mem_alternatingGroup]
apply Equiv.Perm.IsThreeCycle.sign
apply Equiv.Perm.isThreeCycle_swap_mul_swap_same hab hac hbc | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ c ∈ s | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ c ∈ s | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ c ∈ s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | suffices g • s = s by
rw [← this]
use a
constructor; exact ha
dsimp [g]
rw [Equiv.swap_apply_left]
rw [Equiv.swap_apply_of_ne_of_ne hac.symm hbc.symm] | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ c ∈ s | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ g • s = s | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ c ∈ s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | change (⟨g, hg⟩ : alternatingGroup α) • s = s | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ g • s = s | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ { val := g, property := hg } • s = s | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ g • s = s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | rw [← MulAction.mem_stabilizer_iff] | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ { val := g, property := hg } • s = s | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ { val := g, property := hg } ∈ stabilizer (↥(alternatingGroup α)) s | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ { val := g, property := hg } • s = s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | erw [h] | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ { val := g, property := hg } ∈ stabilizer (↥(alternatingGroup α)) s | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ { val := g, property := hg } ∈ ⊤ | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ { val := g, property := hg } ∈ stabilizer (↥(alternatingGroup α)) s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | apply Subgroup.mem_top | case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ { val := g, property := hg } ∈ ⊤ | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case intro.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
⊢ { val := g, property := hg } ∈ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | intro h | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
⊢ a ≠ c | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
h : a = c
⊢ False | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
⊢ a ≠ c
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | apply hc | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
h : a = c
⊢ False | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
h : a = c
⊢ c ∈ s | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
h : a = c
⊢ False
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | rw [← h] | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
h : a = c
⊢ c ∈ s | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
h : a = c
⊢ a ∈ s | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
h : a = c
⊢ c ∈ s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | exact ha | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
h : a = c
⊢ a ∈ s | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
h : a = c
⊢ a ∈ s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | intro h | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
⊢ a ≠ b | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
h : a = b
⊢ False | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
⊢ a ≠ b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | apply hb | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
h : a = b
⊢ False | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
h : a = b
⊢ b ∈ s | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
h : a = b
⊢ False
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | rw [← h] | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
h : a = b
⊢ b ∈ s | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
h : a = b
⊢ a ∈ s | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
h : a = b
⊢ b ∈ s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | exact ha | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
h : a = b
⊢ a ∈ s | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
h : a = b
⊢ a ∈ s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | rw [Equiv.Perm.mem_alternatingGroup] | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ g ∈ alternatingGroup α | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ Equiv.Perm.sign g = 1 | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ g ∈ alternatingGroup α
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | apply Equiv.Perm.IsThreeCycle.sign | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ Equiv.Perm.sign g = 1 | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ Equiv.Perm.IsThreeCycle g | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ Equiv.Perm.sign g = 1
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | apply Equiv.Perm.isThreeCycle_swap_mul_swap_same hab hac hbc | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ Equiv.Perm.IsThreeCycle g | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
⊢ Equiv.Perm.IsThreeCycle g
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | rw [← this] | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ c ∈ s | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ c ∈ g • s | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ c ∈ s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | use a | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ c ∈ g • s | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ a ∈ s ∧ (fun x => g • x) a = c | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ c ∈ g • s
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | constructor | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ a ∈ s ∧ (fun x => g • x) a = c | case h.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ a ∈ s
case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (fun x => g • x) a = c | Please generate a tactic in lean4 to solve the state.
STATE:
case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ a ∈ s ∧ (fun x => g • x) a = c
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | exact ha | case h.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ a ∈ s
case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (fun x => g • x) a = c | case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (fun x => g • x) a = c | Please generate a tactic in lean4 to solve the state.
STATE:
case h.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ a ∈ s
case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (fun x => g • x) a = c
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | dsimp [g] | case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (fun x => g • x) a = c | case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (Equiv.swap a b) ((Equiv.swap a c) a) = c | Please generate a tactic in lean4 to solve the state.
STATE:
case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (fun x => g • x) a = c
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | rw [Equiv.swap_apply_left] | case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (Equiv.swap a b) ((Equiv.swap a c) a) = c | case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (Equiv.swap a b) c = c | Please generate a tactic in lean4 to solve the state.
STATE:
case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (Equiv.swap a b) ((Equiv.swap a c) a) = c
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top' | [105, 1] | [129, 71] | rw [Equiv.swap_apply_of_ne_of_ne hac.symm hbc.symm] | case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (Equiv.swap a b) c = c | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
a : α
ha : a ∈ s
b : α
hb : b ∉ s
c : α
hc : c ∉ s
hbc : b ≠ c
hac : a ≠ c
hab : a ≠ b
h : stabilizer (↥(alternatingGroup α)) s = ⊤
g : Equiv.Perm α := Equiv.swap a b * Equiv.swap a c
hg : g ∈ alternatingGroup α
this : g • s = s
⊢ (Equiv.swap a b) c = c
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top | [132, 1] | [139, 37] | cases' hssc with hs' hsc' | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hssc : Set.Nontrivial s ∨ Set.Nontrivial sᶜ
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | case inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hs' : Set.Nontrivial s
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
case inr
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hsc' : Set.Nontrivial sᶜ
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hssc : Set.Nontrivial s ∨ Set.Nontrivial sᶜ
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top | [132, 1] | [139, 37] | exact stabilizer_ne_top' s hs hsc' | case inr
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hsc' : Set.Nontrivial sᶜ
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case inr
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hsc' : Set.Nontrivial sᶜ
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top | [132, 1] | [139, 37] | rw [← stabilizer_compl] | case inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hs' : Set.Nontrivial s
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤ | case inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hs' : Set.Nontrivial s
⊢ stabilizer (↥(alternatingGroup α)) sᶜ ≠ ⊤ | Please generate a tactic in lean4 to solve the state.
STATE:
case inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hs' : Set.Nontrivial s
⊢ stabilizer (↥(alternatingGroup α)) s ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top | [132, 1] | [139, 37] | rw [← compl_compl s] at hs' | case inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hs' : Set.Nontrivial s
⊢ stabilizer (↥(alternatingGroup α)) sᶜ ≠ ⊤ | case inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hs' : Set.Nontrivial sᶜᶜ
⊢ stabilizer (↥(alternatingGroup α)) sᶜ ≠ ⊤ | Please generate a tactic in lean4 to solve the state.
STATE:
case inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hs' : Set.Nontrivial s
⊢ stabilizer (↥(alternatingGroup α)) sᶜ ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.stabilizer_ne_top | [132, 1] | [139, 37] | exact stabilizer_ne_top' (sᶜ) hsc hs' | case inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hs' : Set.Nontrivial sᶜᶜ
⊢ stabilizer (↥(alternatingGroup α)) sᶜ ≠ ⊤ | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
s : Set α
hs : Set.Nonempty s
hsc : Set.Nonempty sᶜ
hs' : Set.Nontrivial sᶜᶜ
⊢ stabilizer (↥(alternatingGroup α)) sᶜ ≠ ⊤
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | intro a ha b hb | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
⊢ ∀ a ∈ t, ∀ b ∈ t, ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
⊢ ∀ a ∈ t, ∀ b ∈ t, ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | by_cases hab : a = b | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | case pos
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a = b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
case neg
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : ¬a = b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | use 1 | case pos
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a = b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a = b
⊢ 1 ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α ∧ 1 • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
case pos
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a = b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | simp only [hab, Subgroup.one_mem, one_smul, eq_self_iff_true, and_self_iff] | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a = b
⊢ 1 ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α ∧ 1 • a = b | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a = b
⊢ 1 ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α ∧ 1 • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | rw [← Ne.def] at hab | case neg
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : ¬a = b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | case neg
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
case neg
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : ¬a = b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | cases' le_or_gt (Set.ncard t) 2 with ht ht' | case neg
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | case neg.inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
case neg.inr
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht' : Set.ncard t > 2
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
case neg
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | have h : 1 < Set.ncard (tᶜ : Set α) := by
by_contra h
rw [not_lt] at h
rw [← not_lt] at hα
apply hα
rw [← Nat.card_eq_fintype_card, ← Set.ncard_add_ncard_compl t]
apply Nat.lt_succ_of_le
apply add_le_add ht h | case neg.inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | case neg.inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : 1 < Set.ncard tᶜ
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
case neg.inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | rw [Set.one_lt_ncard_iff] at h | case neg.inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : 1 < Set.ncard tᶜ
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | case neg.inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : ∃ a b, a ∈ tᶜ ∧ b ∈ tᶜ ∧ a ≠ b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
case neg.inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : 1 < Set.ncard tᶜ
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | obtain ⟨c, d, hc, hd, hcd⟩ := h | case neg.inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : ∃ a b, a ∈ tᶜ ∧ b ∈ tᶜ ∧ a ≠ b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | case neg.inl.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : c ≠ d
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
case neg.inl
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : ∃ a b, a ∈ tᶜ ∧ b ∈ tᶜ ∧ a ≠ b
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | simp only [Ne.def] at hcd | case neg.inl.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : c ≠ d
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | case neg.inl.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
case neg.inl.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : c ≠ d
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | use Equiv.swap a b * Equiv.swap c d | case neg.inl.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α ∧
(Equiv.swap a b * Equiv.swap c d) • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
case neg.inl.intro.intro.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ ∃ g ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α, g • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | constructor | case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α ∧
(Equiv.swap a b * Equiv.swap c d) • a = b | case h.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α
case h.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ (Equiv.swap a b * Equiv.swap c d) • a = b | Please generate a tactic in lean4 to solve the state.
STATE:
case h
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α ∧
(Equiv.swap a b * Equiv.swap c d) • a = b
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | by_contra h | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
⊢ 1 < Set.ncard tᶜ | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : ¬1 < Set.ncard tᶜ
⊢ False | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
⊢ 1 < Set.ncard tᶜ
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | rw [not_lt] at h | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : ¬1 < Set.ncard tᶜ
⊢ False | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ False | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : ¬1 < Set.ncard tᶜ
⊢ False
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | rw [← not_lt] at hα | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ False | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ False | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ False
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | apply hα | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ False | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ Fintype.card α < 4 | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ False
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | rw [← Nat.card_eq_fintype_card, ← Set.ncard_add_ncard_compl t] | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ Fintype.card α < 4 | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ Set.ncard t + Set.ncard tᶜ < 4 | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ Fintype.card α < 4
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | apply Nat.lt_succ_of_le | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ Set.ncard t + Set.ncard tᶜ < 4 | case a
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ Set.ncard t + Set.ncard tᶜ ≤ 3 | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ Set.ncard t + Set.ncard tᶜ < 4
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | apply add_le_add ht h | case a
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ Set.ncard t + Set.ncard tᶜ ≤ 3 | no goals | Please generate a tactic in lean4 to solve the state.
STATE:
case a
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : ¬Fintype.card α < 4
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
h : Set.ncard tᶜ ≤ 1
⊢ Set.ncard t + Set.ncard tᶜ ≤ 3
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | simp only [Subgroup.mem_inf] | case h.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α | case h.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t ∧ Equiv.swap a b * Equiv.swap c d ∈ alternatingGroup α | Please generate a tactic in lean4 to solve the state.
STATE:
case h.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t ⊓ alternatingGroup α
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | constructor | case h.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t ∧ Equiv.swap a b * Equiv.swap c d ∈ alternatingGroup α | case h.left.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t
case h.left.right
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ alternatingGroup α | Please generate a tactic in lean4 to solve the state.
STATE:
case h.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t ∧ Equiv.swap a b * Equiv.swap c d ∈ alternatingGroup α
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | rw [mem_stabilizer_of_finite_iff_smul_le _ _ t.toFinite] | case h.left.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t | case h.left.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ (Equiv.swap a b * Equiv.swap c d) • t ⊆ t | Please generate a tactic in lean4 to solve the state.
STATE:
case h.left.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ Equiv.swap a b * Equiv.swap c d ∈ stabilizer (Equiv.Perm α) t
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | rintro _ ⟨x, hx, rfl⟩ | case h.left.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ (Equiv.swap a b * Equiv.swap c d) • t ⊆ t | case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
⊢ (fun x => (Equiv.swap a b * Equiv.swap c d) • x) x ∈ t | Please generate a tactic in lean4 to solve the state.
STATE:
case h.left.left
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
⊢ (Equiv.swap a b * Equiv.swap c d) • t ⊆ t
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | simp only [Equiv.Perm.smul_def, Equiv.Perm.coe_mul, Function.comp_apply] | case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
⊢ (fun x => (Equiv.swap a b * Equiv.swap c d) • x) x ∈ t | case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
⊢ (Equiv.swap a b) ((Equiv.swap c d) x) ∈ t | Please generate a tactic in lean4 to solve the state.
STATE:
case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
⊢ (fun x => (Equiv.swap a b * Equiv.swap c d) • x) x ∈ t
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | have hx_ne : ∀ u ∈ tᶜ, x ≠ u := fun u hu h => Set.mem_compl hu (by rw [← h]; exact hx) | case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
⊢ (Equiv.swap a b) ((Equiv.swap c d) x) ∈ t | case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
hx_ne : ∀ u ∈ tᶜ, x ≠ u
⊢ (Equiv.swap a b) ((Equiv.swap c d) x) ∈ t | Please generate a tactic in lean4 to solve the state.
STATE:
case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
⊢ (Equiv.swap a b) ((Equiv.swap c d) x) ∈ t
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | rw [Equiv.swap_apply_of_ne_of_ne (hx_ne c hc) (hx_ne d hd)] | case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
hx_ne : ∀ u ∈ tᶜ, x ≠ u
⊢ (Equiv.swap a b) ((Equiv.swap c d) x) ∈ t | case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
hx_ne : ∀ u ∈ tᶜ, x ≠ u
⊢ (Equiv.swap a b) x ∈ t | Please generate a tactic in lean4 to solve the state.
STATE:
case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
hx_ne : ∀ u ∈ tᶜ, x ≠ u
⊢ (Equiv.swap a b) ((Equiv.swap c d) x) ∈ t
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | by_cases hxa : x = a | case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
hx_ne : ∀ u ∈ tᶜ, x ≠ u
⊢ (Equiv.swap a b) x ∈ t | case pos
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
hx_ne : ∀ u ∈ tᶜ, x ≠ u
hxa : x = a
⊢ (Equiv.swap a b) x ∈ t
case neg
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
hx_ne : ∀ u ∈ tᶜ, x ≠ u
hxa : ¬x = a
⊢ (Equiv.swap a b) x ∈ t | Please generate a tactic in lean4 to solve the state.
STATE:
case h.left.left.intro.intro
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
hx_ne : ∀ u ∈ tᶜ, x ≠ u
⊢ (Equiv.swap a b) x ∈ t
TACTIC:
|
https://github.com/AntoineChambert-Loir/Jordan4.git | d49910c127be01229697737a55a2d756e908d3e1 | Jordan/AlternatingMaximal.lean | alternatingGroup.moves_in | [153, 1] | [238, 37] | rw [← h] | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
u : α
hu : u ∈ tᶜ
h : x = u
⊢ u ∈ t | α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
u : α
hu : u ∈ tᶜ
h : x = u
⊢ x ∈ t | Please generate a tactic in lean4 to solve the state.
STATE:
α : Type u_1
inst✝¹ : Fintype α
inst✝ : DecidableEq α
hα : 4 ≤ Fintype.card α
t : Set α
a : α
ha : a ∈ t
b : α
hb : b ∈ t
hab : a ≠ b
ht : Set.ncard t ≤ 2
c d : α
hc : c ∈ tᶜ
hd : d ∈ tᶜ
hcd : ¬c = d
x : α
hx : x ∈ t
u : α
hu : u ∈ tᶜ
h : x = u
⊢ u ∈ t
TACTIC:
|
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