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coe_comp (f : β →Co γ) (g : α →Co β) : (f.comp g : α → γ) = f ∘ g
rfl
lemma
continuous_order_hom.coe_comp
topology.order.hom
src/topology/order/hom/basic.lean
[ "order.hom.basic", "topology.continuous_function.basic" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp_apply (f : β →Co γ) (g : α →Co β) (a : α) : (f.comp g) a = f (g a)
rfl
lemma
continuous_order_hom.comp_apply
topology.order.hom
src/topology/order/hom/basic.lean
[ "order.hom.basic", "topology.continuous_function.basic" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp_assoc (f : γ →Co δ) (g : β →Co γ) (h : α →Co β) : (f.comp g).comp h = f.comp (g.comp h)
rfl
lemma
continuous_order_hom.comp_assoc
topology.order.hom
src/topology/order/hom/basic.lean
[ "order.hom.basic", "topology.continuous_function.basic" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp_id (f : α →Co β) : f.comp (continuous_order_hom.id α) = f
ext $ λ a, rfl
lemma
continuous_order_hom.comp_id
topology.order.hom
src/topology/order/hom/basic.lean
[ "order.hom.basic", "topology.continuous_function.basic" ]
[ "continuous_order_hom.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
id_comp (f : α →Co β) : (continuous_order_hom.id β).comp f = f
ext $ λ a, rfl
lemma
continuous_order_hom.id_comp
topology.order.hom
src/topology/order/hom/basic.lean
[ "order.hom.basic", "topology.continuous_function.basic" ]
[ "continuous_order_hom.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
cancel_right {g₁ g₂ : β →Co γ} {f : α →Co β} (hf : surjective f) : g₁.comp f = g₂.comp f ↔ g₁ = g₂
⟨λ h, ext $ hf.forall.2 $ fun_like.ext_iff.1 h, congr_arg _⟩
lemma
continuous_order_hom.cancel_right
topology.order.hom
src/topology/order/hom/basic.lean
[ "order.hom.basic", "topology.continuous_function.basic" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
cancel_left {g : β →Co γ} {f₁ f₂ : α →Co β} (hg : injective g) : g.comp f₁ = g.comp f₂ ↔ f₁ = f₂
⟨λ h, ext $ λ a, hg $ by rw [←comp_apply, h, comp_apply], congr_arg _⟩
lemma
continuous_order_hom.cancel_left
topology.order.hom
src/topology/order/hom/basic.lean
[ "order.hom.basic", "topology.continuous_function.basic" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
pseudo_epimorphism (α β : Type*) [preorder α] [preorder β] extends α →o β
(exists_map_eq_of_map_le' ⦃a : α⦄ ⦃b : β⦄ : to_fun a ≤ b → ∃ c, a ≤ c ∧ to_fun c = b)
structure
pseudo_epimorphism
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[]
The type of pseudo-epimorphisms, aka p-morphisms, aka bounded maps, from `α` to `β`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
esakia_hom (α β : Type*) [topological_space α] [preorder α] [topological_space β] [preorder β] extends α →Co β
(exists_map_eq_of_map_le' ⦃a : α⦄ ⦃b : β⦄ : to_fun a ≤ b → ∃ c, a ≤ c ∧ to_fun c = b)
structure
esakia_hom
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "topological_space" ]
The type of Esakia morphisms, aka continuous pseudo-epimorphisms, from `α` to `β`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
pseudo_epimorphism_class (F : Type*) (α β : out_param $ Type*) [preorder α] [preorder β] extends rel_hom_class F ((≤) : α → α → Prop) ((≤) : β → β → Prop)
(exists_map_eq_of_map_le (f : F) ⦃a : α⦄ ⦃b : β⦄ : f a ≤ b → ∃ c, a ≤ c ∧ f c = b)
class
pseudo_epimorphism_class
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "rel_hom_class" ]
`pseudo_epimorphism_class F α β` states that `F` is a type of `⊔`-preserving morphisms. You should extend this class when you extend `pseudo_epimorphism`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
esakia_hom_class (F : Type*) (α β : out_param $ Type*) [topological_space α] [preorder α] [topological_space β] [preorder β] extends continuous_order_hom_class F α β
(exists_map_eq_of_map_le (f : F) ⦃a : α⦄ ⦃b : β⦄ : f a ≤ b → ∃ c, a ≤ c ∧ f c = b)
class
esakia_hom_class
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "continuous_order_hom_class", "topological_space" ]
`esakia_hom_class F α β` states that `F` is a type of lattice morphisms. You should extend this class when you extend `esakia_hom`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
pseudo_epimorphism_class.to_top_hom_class [partial_order α] [order_top α] [preorder β] [order_top β] [pseudo_epimorphism_class F α β] : top_hom_class F α β
{ map_top := λ f, let ⟨b, h⟩ := exists_map_eq_of_map_le f (@le_top _ _ _ $ f ⊤) in by rw [←top_le_iff.1 h.1, h.2] .. ‹pseudo_epimorphism_class F α β› }
instance
pseudo_epimorphism_class.to_top_hom_class
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "le_top", "order_top", "pseudo_epimorphism_class", "top_hom_class" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
order_iso_class.to_pseudo_epimorphism_class [preorder α] [preorder β] [order_iso_class F α β] : pseudo_epimorphism_class F α β
{ exists_map_eq_of_map_le := λ f a b h, ⟨equiv_like.inv f b, (le_map_inv_iff f).2 h, equiv_like.right_inv _ _⟩, .. order_iso_class.to_order_hom_class }
instance
order_iso_class.to_pseudo_epimorphism_class
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "le_map_inv_iff", "order_iso_class", "order_iso_class.to_order_hom_class", "pseudo_epimorphism_class" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
esakia_hom_class.to_pseudo_epimorphism_class [topological_space α] [preorder α] [topological_space β] [preorder β] [esakia_hom_class F α β] : pseudo_epimorphism_class F α β
{ .. ‹esakia_hom_class F α β› }
instance
esakia_hom_class.to_pseudo_epimorphism_class
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom_class", "pseudo_epimorphism_class", "topological_space" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
to_fun_eq_coe {f : pseudo_epimorphism α β} : f.to_fun = (f : α → β)
rfl
lemma
pseudo_epimorphism.to_fun_eq_coe
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
ext {f g : pseudo_epimorphism α β} (h : ∀ a, f a = g a) : f = g
fun_like.ext f g h
lemma
pseudo_epimorphism.ext
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "fun_like.ext", "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
copy (f : pseudo_epimorphism α β) (f' : α → β) (h : f' = f) : pseudo_epimorphism α β
⟨f.to_order_hom.copy f' h, by simpa only [h.symm, to_fun_eq_coe] using f.exists_map_eq_of_map_le'⟩
def
pseudo_epimorphism.copy
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
Copy of a `pseudo_epimorphism` with a new `to_fun` equal to the old one. Useful to fix definitional equalities.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_copy (f : pseudo_epimorphism α β) (f' : α → β) (h : f' = f) : ⇑(f.copy f' h) = f'
rfl
lemma
pseudo_epimorphism.coe_copy
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
copy_eq (f : pseudo_epimorphism α β) (f' : α → β) (h : f' = f) : f.copy f' h = f
fun_like.ext' h
lemma
pseudo_epimorphism.copy_eq
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "fun_like.ext'", "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
id : pseudo_epimorphism α α
⟨order_hom.id, λ a b h, ⟨b, h, rfl⟩⟩
def
pseudo_epimorphism.id
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
`id` as a `pseudo_epimorphism`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_id : ⇑(pseudo_epimorphism.id α) = id
rfl
lemma
pseudo_epimorphism.coe_id
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_id_order_hom : (pseudo_epimorphism.id α : α →o α) = order_hom.id
rfl
lemma
pseudo_epimorphism.coe_id_order_hom
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "order_hom.id", "pseudo_epimorphism.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
id_apply (a : α) : pseudo_epimorphism.id α a = a
rfl
lemma
pseudo_epimorphism.id_apply
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp (g : pseudo_epimorphism β γ) (f : pseudo_epimorphism α β) : pseudo_epimorphism α γ
⟨g.to_order_hom.comp f.to_order_hom, λ a b h₀, begin obtain ⟨b, h₁, rfl⟩ := g.exists_map_eq_of_map_le' h₀, obtain ⟨b, h₂, rfl⟩ := f.exists_map_eq_of_map_le' h₁, exact ⟨b, h₂, rfl⟩, end⟩
def
pseudo_epimorphism.comp
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
Composition of `pseudo_epimorphism`s as a `pseudo_epimorphism`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_comp (g : pseudo_epimorphism β γ) (f : pseudo_epimorphism α β) : (g.comp f : α → γ) = g ∘ f
rfl
lemma
pseudo_epimorphism.coe_comp
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_comp_order_hom (g : pseudo_epimorphism β γ) (f : pseudo_epimorphism α β) : (g.comp f : α →o γ) = (g : β →o γ).comp f
rfl
lemma
pseudo_epimorphism.coe_comp_order_hom
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp_apply (g : pseudo_epimorphism β γ) (f : pseudo_epimorphism α β) (a : α) : (g.comp f) a = g (f a)
rfl
lemma
pseudo_epimorphism.comp_apply
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp_assoc (h : pseudo_epimorphism γ δ) (g : pseudo_epimorphism β γ) (f : pseudo_epimorphism α β) : (h.comp g).comp f = h.comp (g.comp f)
rfl
lemma
pseudo_epimorphism.comp_assoc
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp_id (f : pseudo_epimorphism α β) : f.comp (pseudo_epimorphism.id α) = f
ext $ λ a, rfl
lemma
pseudo_epimorphism.comp_id
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism", "pseudo_epimorphism.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
id_comp (f : pseudo_epimorphism α β) : (pseudo_epimorphism.id β).comp f = f
ext $ λ a, rfl
lemma
pseudo_epimorphism.id_comp
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism", "pseudo_epimorphism.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
cancel_right {g₁ g₂ : pseudo_epimorphism β γ} {f : pseudo_epimorphism α β} (hf : surjective f) : g₁.comp f = g₂.comp f ↔ g₁ = g₂
⟨λ h, ext $ hf.forall.2 $ fun_like.ext_iff.1 h, congr_arg _⟩
lemma
pseudo_epimorphism.cancel_right
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
cancel_left {g : pseudo_epimorphism β γ} {f₁ f₂ : pseudo_epimorphism α β} (hg : injective g) : g.comp f₁ = g.comp f₂ ↔ f₁ = f₂
⟨λ h, ext $ λ a, hg $ by rw [←comp_apply, h, comp_apply], congr_arg _⟩
lemma
pseudo_epimorphism.cancel_left
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
to_pseudo_epimorphism (f : esakia_hom α β) : pseudo_epimorphism α β
{ ..f }
def
esakia_hom.to_pseudo_epimorphism
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom", "pseudo_epimorphism" ]
Reinterpret an `esakia_hom` as a `pseudo_epimorphism`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
to_fun_eq_coe {f : esakia_hom α β} : f.to_fun = (f : α → β)
rfl
lemma
esakia_hom.to_fun_eq_coe
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
ext {f g : esakia_hom α β} (h : ∀ a, f a = g a) : f = g
fun_like.ext f g h
lemma
esakia_hom.ext
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom", "fun_like.ext" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
copy (f : esakia_hom α β) (f' : α → β) (h : f' = f) : esakia_hom α β
⟨f.to_continuous_order_hom.copy f' h, by simpa only [h.symm, to_fun_eq_coe] using f.exists_map_eq_of_map_le'⟩
def
esakia_hom.copy
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
Copy of an `esakia_hom` with a new `to_fun` equal to the old one. Useful to fix definitional equalities.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_copy (f : esakia_hom α β) (f' : α → β) (h : f' = f) : ⇑(f.copy f' h) = f'
rfl
lemma
esakia_hom.coe_copy
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
copy_eq (f : esakia_hom α β) (f' : α → β) (h : f' = f) : f.copy f' h = f
fun_like.ext' h
lemma
esakia_hom.copy_eq
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom", "fun_like.ext'" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
id : esakia_hom α α
⟨continuous_order_hom.id α, λ a b h, ⟨b, h, rfl⟩⟩
def
esakia_hom.id
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
`id` as an `esakia_hom`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_id : ⇑(esakia_hom.id α) = id
rfl
lemma
esakia_hom.coe_id
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_id_continuous_order_hom : (esakia_hom.id α : α →Co α) = continuous_order_hom.id α
rfl
lemma
esakia_hom.coe_id_continuous_order_hom
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "continuous_order_hom.id", "esakia_hom.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_id_pseudo_epimorphism : (esakia_hom.id α : pseudo_epimorphism α α) = pseudo_epimorphism.id α
rfl
lemma
esakia_hom.coe_id_pseudo_epimorphism
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom.id", "pseudo_epimorphism", "pseudo_epimorphism.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
id_apply (a : α) : esakia_hom.id α a = a
rfl
lemma
esakia_hom.id_apply
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp (g : esakia_hom β γ) (f : esakia_hom α β) : esakia_hom α γ
⟨g.to_continuous_order_hom.comp f.to_continuous_order_hom, λ a b h₀, begin obtain ⟨b, h₁, rfl⟩ := g.exists_map_eq_of_map_le' h₀, obtain ⟨b, h₂, rfl⟩ := f.exists_map_eq_of_map_le' h₁, exact ⟨b, h₂, rfl⟩, end⟩
def
esakia_hom.comp
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
Composition of `esakia_hom`s as an `esakia_hom`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_comp (g : esakia_hom β γ) (f : esakia_hom α β) : (g.comp f : α → γ) = g ∘ f
rfl
lemma
esakia_hom.coe_comp
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp_apply (g : esakia_hom β γ) (f : esakia_hom α β) (a : α) : (g.comp f) a = g (f a)
rfl
lemma
esakia_hom.comp_apply
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_comp_continuous_order_hom (g : esakia_hom β γ) (f : esakia_hom α β) : (g.comp f : α →Co γ) = (g : β →Co γ).comp f
rfl
lemma
esakia_hom.coe_comp_continuous_order_hom
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_comp_pseudo_epimorphism (g : esakia_hom β γ) (f : esakia_hom α β) : (g.comp f : pseudo_epimorphism α γ) = (g : pseudo_epimorphism β γ).comp f
rfl
lemma
esakia_hom.coe_comp_pseudo_epimorphism
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom", "pseudo_epimorphism" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp_assoc (h : esakia_hom γ δ) (g : esakia_hom β γ) (f : esakia_hom α β) : (h.comp g).comp f = h.comp (g.comp f)
rfl
lemma
esakia_hom.comp_assoc
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
comp_id (f : esakia_hom α β) : f.comp (esakia_hom.id α) = f
ext $ λ a, rfl
lemma
esakia_hom.comp_id
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom", "esakia_hom.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
id_comp (f : esakia_hom α β) : (esakia_hom.id β).comp f = f
ext $ λ a, rfl
lemma
esakia_hom.id_comp
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom", "esakia_hom.id" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
cancel_right {g₁ g₂ : esakia_hom β γ} {f : esakia_hom α β} (hf : surjective f) : g₁.comp f = g₂.comp f ↔ g₁ = g₂
⟨λ h, ext $ hf.forall.2 $ fun_like.ext_iff.1 h, congr_arg _⟩
lemma
esakia_hom.cancel_right
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
cancel_left {g : esakia_hom β γ} {f₁ f₂ : esakia_hom α β} (hg : injective g) : g.comp f₁ = g.comp f₂ ↔ f₁ = f₂
⟨λ h, ext $ λ a, hg $ by rw [←comp_apply, h, comp_apply], congr_arg _⟩
lemma
esakia_hom.cancel_left
topology.order.hom
src/topology/order/hom/esakia.lean
[ "order.hom.bounded", "topology.order.hom.basic" ]
[ "esakia_hom" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
closeds (α : Type*) [topological_space α]
(carrier : set α) (closed' : is_closed carrier)
structure
topological_space.closeds
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "is_closed", "topological_space" ]
The type of closed subsets of a topological space.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
closed (s : closeds α) : is_closed (s : set α)
s.closed'
lemma
topological_space.closeds.closed
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "is_closed" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
ext {s t : closeds α} (h : (s : set α) = t) : s = t
set_like.ext' h
lemma
topological_space.closeds.ext
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "set_like.ext'" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_mk (s : set α) (h) : (mk s h : set α) = s
rfl
lemma
topological_space.closeds.coe_mk
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
closure (s : set α) : closeds α
⟨closure s, is_closed_closure⟩
def
topological_space.closeds.closure
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "closure" ]
The closure of a set, as an element of `closeds`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
gc : galois_connection closeds.closure (coe : closeds α → set α)
λ s U, ⟨subset_closure.trans, λ h, closure_minimal h U.closed⟩
lemma
topological_space.closeds.gc
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "closure_minimal", "galois_connection" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
gi : galois_insertion (@closeds.closure α _) coe
{ choice := λ s hs, ⟨s, closure_eq_iff_is_closed.1 $ hs.antisymm subset_closure⟩, gc := gc, le_l_u := λ _, subset_closure, choice_eq := λ s hs, set_like.coe_injective $ subset_closure.antisymm hs }
def
topological_space.closeds.gi
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "galois_insertion", "set_like.coe_injective", "subset_closure" ]
The galois coinsertion between sets and opens.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_sup (s t : closeds α) : (↑(s ⊔ t) : set α) = s ∪ t
rfl
lemma
topological_space.closeds.coe_sup
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_inf (s t : closeds α) : (↑(s ⊓ t) : set α) = s ∩ t
rfl
lemma
topological_space.closeds.coe_inf
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_top : (↑(⊤ : closeds α) : set α) = univ
rfl
lemma
topological_space.closeds.coe_top
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_bot : (↑(⊥ : closeds α) : set α) = ∅
rfl
lemma
topological_space.closeds.coe_bot
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_Inf {S : set (closeds α)} : (↑(Inf S) : set α) = ⋂ i ∈ S, ↑i
rfl
lemma
topological_space.closeds.coe_Inf
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_finset_sup (f : ι → closeds α) (s : finset ι) : (↑(s.sup f) : set α) = s.sup (coe ∘ f)
map_finset_sup (⟨⟨coe, coe_sup⟩, coe_bot⟩ : sup_bot_hom (closeds α) (set α)) _ _
lemma
topological_space.closeds.coe_finset_sup
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "finset", "map_finset_sup", "sup_bot_hom" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_finset_inf (f : ι → closeds α) (s : finset ι) : (↑(s.inf f) : set α) = s.inf (coe ∘ f)
map_finset_inf (⟨⟨coe, coe_inf⟩, coe_top⟩ : inf_top_hom (closeds α) (set α)) _ _
lemma
topological_space.closeds.coe_finset_inf
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "finset", "inf_top_hom", "map_finset_inf" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
infi_def {ι} (s : ι → closeds α) : (⨅ i, s i) = ⟨⋂ i, s i, is_closed_Inter $ λ i, (s i).2⟩
by { ext, simp only [infi, coe_Inf, bInter_range], refl }
lemma
topological_space.closeds.infi_def
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "infi", "is_closed_Inter" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
infi_mk {ι} (s : ι → set α) (h : ∀ i, is_closed (s i)) : (⨅ i, ⟨s i, h i⟩ : closeds α) = ⟨⋂ i, s i, is_closed_Inter h⟩
by simp [infi_def]
lemma
topological_space.closeds.infi_mk
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "is_closed", "is_closed_Inter" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_infi {ι} (s : ι → closeds α) : ((⨅ i, s i : closeds α) : set α) = ⋂ i, s i
by simp [infi_def]
lemma
topological_space.closeds.coe_infi
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
mem_infi {ι} {x : α} {s : ι → closeds α} : x ∈ infi s ↔ ∀ i, x ∈ s i
by simp [←set_like.mem_coe]
lemma
topological_space.closeds.mem_infi
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "infi" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
mem_Inf {S : set (closeds α)} {x : α} : x ∈ Inf S ↔ ∀ s ∈ S, x ∈ s
by simp_rw [Inf_eq_infi, mem_infi]
lemma
topological_space.closeds.mem_Inf
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "Inf_eq_infi" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
singleton [t1_space α] (x : α) : closeds α
⟨{x}, is_closed_singleton⟩
def
topological_space.closeds.singleton
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "t1_space" ]
The term of `closeds α` corresponding to a singleton.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
closeds.compl (s : closeds α) : opens α
⟨sᶜ, s.2.is_open_compl⟩
def
topological_space.closeds.compl
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
The complement of a closed set as an open set.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
opens.compl (s : opens α) : closeds α
⟨sᶜ, s.2.is_closed_compl⟩
def
topological_space.opens.compl
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
The complement of an open set as a closed set.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
closeds.compl_compl (s : closeds α) : s.compl.compl = s
closeds.ext (compl_compl s)
lemma
topological_space.closeds.compl_compl
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "compl_compl" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
opens.compl_compl (s : opens α) : s.compl.compl = s
opens.ext (compl_compl s)
lemma
topological_space.opens.compl_compl
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "compl_compl" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
closeds.compl_bijective : function.bijective (@closeds.compl α _)
function.bijective_iff_has_inverse.mpr ⟨opens.compl, closeds.compl_compl, opens.compl_compl⟩
lemma
topological_space.closeds.compl_bijective
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
opens.compl_bijective : function.bijective (@opens.compl α _)
function.bijective_iff_has_inverse.mpr ⟨closeds.compl, opens.compl_compl, closeds.compl_compl⟩
lemma
topological_space.opens.compl_bijective
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
closeds.compl_order_iso : closeds α ≃o (opens α)ᵒᵈ
{ to_fun := order_dual.to_dual ∘ closeds.compl, inv_fun := opens.compl ∘ order_dual.of_dual, left_inv := λ s, by simp [closeds.compl_compl], right_inv := λ s, by simp [opens.compl_compl], map_rel_iff' := λ s t, by simpa only [equiv.coe_fn_mk, function.comp_app, order_dual.to_dual_le_to_dual] using compl_sub...
def
topological_space.closeds.compl_order_iso
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "equiv.coe_fn_mk", "inv_fun", "order_dual.of_dual", "order_dual.to_dual", "order_dual.to_dual_le_to_dual" ]
`closeds.compl` as an `order_iso` to the order dual of `opens α`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
opens.compl_order_iso : opens α ≃o (closeds α)ᵒᵈ
{ to_fun := order_dual.to_dual ∘ opens.compl, inv_fun := closeds.compl ∘ order_dual.of_dual, left_inv := λ s, by simp [opens.compl_compl], right_inv := λ s, by simp [closeds.compl_compl], map_rel_iff' := λ s t, by simpa only [equiv.coe_fn_mk, function.comp_app, order_dual.to_dual_le_to_dual] using compl_sub...
def
topological_space.opens.compl_order_iso
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "equiv.coe_fn_mk", "inv_fun", "order_dual.of_dual", "order_dual.to_dual", "order_dual.to_dual_le_to_dual" ]
`opens.compl` as an `order_iso` to the order dual of `closeds α`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
closeds.is_atom_iff [t1_space α] {s : closeds α} : is_atom s ↔ ∃ x, s = closeds.singleton x
begin have : is_atom (s : set α) ↔ is_atom s, { refine closeds.gi.is_atom_iff' rfl (λ t ht, _) s, obtain ⟨x, rfl⟩ := t.is_atom_iff.mp ht, exact closure_singleton }, simpa only [← this, (s : set α).is_atom_iff, set_like.ext_iff, set.ext_iff] end
lemma
topological_space.closeds.is_atom_iff
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "closure_singleton", "is_atom", "is_atom_iff", "set.ext_iff", "set_like.ext_iff", "t1_space" ]
in a `t1_space`, atoms of `closeds α` are precisely the `closeds.singleton`s.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
opens.is_coatom_iff [t1_space α] {s : opens α} : is_coatom s ↔ ∃ x, s = (closeds.singleton x).compl
begin rw [←s.compl_compl, ←is_atom_dual_iff_is_coatom], change is_atom (closeds.compl_order_iso α s.compl) ↔ _, rw [(closeds.compl_order_iso α).is_atom_iff, closeds.is_atom_iff], congrm ∃ x, _, exact closeds.compl_bijective.injective.eq_iff.symm, end
lemma
topological_space.opens.is_coatom_iff
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "is_atom", "is_atom_iff", "is_coatom", "t1_space" ]
in a `t1_space`, coatoms of `opens α` are precisely complements of singletons: `(closeds.singleton x).compl`.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
clopens (α : Type*) [topological_space α]
(carrier : set α) (clopen' : is_clopen carrier)
structure
topological_space.clopens
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "is_clopen", "topological_space" ]
The type of clopen sets of a topological space.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
clopen (s : clopens α) : is_clopen (s : set α)
s.clopen'
lemma
topological_space.clopens.clopen
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "is_clopen" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
to_opens (s : clopens α) : opens α
⟨s, s.clopen.is_open⟩
def
topological_space.clopens.to_opens
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
Reinterpret a compact open as an open.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
ext {s t : clopens α} (h : (s : set α) = t) : s = t
set_like.ext' h
lemma
topological_space.clopens.ext
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[ "set_like.ext'" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_sup (s t : clopens α) : (↑(s ⊔ t) : set α) = s ∪ t
rfl
lemma
topological_space.clopens.coe_sup
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_inf (s t : clopens α) : (↑(s ⊓ t) : set α) = s ∩ t
rfl
lemma
topological_space.clopens.coe_inf
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_top : (↑(⊤ : clopens α) : set α) = univ
rfl
lemma
topological_space.clopens.coe_top
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_bot : (↑(⊥ : clopens α) : set α) = ∅
rfl
lemma
topological_space.clopens.coe_bot
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_sdiff (s t : clopens α) : (↑(s \ t) : set α) = s \ t
rfl
lemma
topological_space.clopens.coe_sdiff
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_compl (s : clopens α) : (↑sᶜ : set α) = sᶜ
rfl
lemma
topological_space.clopens.coe_compl
topology.sets
src/topology/sets/closeds.lean
[ "topology.sets.opens" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
compacts (α : Type*) [topological_space α]
(carrier : set α) (is_compact' : is_compact carrier)
structure
topological_space.compacts
topology.sets
src/topology/sets/compacts.lean
[ "topology.sets.closeds", "topology.quasi_separated" ]
[ "is_compact", "topological_space" ]
The type of compact sets of a topological space.
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
is_compact (s : compacts α) : is_compact (s : set α)
s.is_compact'
lemma
topological_space.compacts.is_compact
topology.sets
src/topology/sets/compacts.lean
[ "topology.sets.closeds", "topology.quasi_separated" ]
[ "is_compact" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
ext {s t : compacts α} (h : (s : set α) = t) : s = t
set_like.ext' h
lemma
topological_space.compacts.ext
topology.sets
src/topology/sets/compacts.lean
[ "topology.sets.closeds", "topology.quasi_separated" ]
[ "set_like.ext'" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
carrier_eq_coe (s : compacts α) : s.carrier = s
rfl
lemma
topological_space.compacts.carrier_eq_coe
topology.sets
src/topology/sets/compacts.lean
[ "topology.sets.closeds", "topology.quasi_separated" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_sup (s t : compacts α) : (↑(s ⊔ t) : set α) = s ∪ t
rfl
lemma
topological_space.compacts.coe_sup
topology.sets
src/topology/sets/compacts.lean
[ "topology.sets.closeds", "topology.quasi_separated" ]
[]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_inf [t2_space α] (s t : compacts α) : (↑(s ⊓ t) : set α) = s ∩ t
rfl
lemma
topological_space.compacts.coe_inf
topology.sets
src/topology/sets/compacts.lean
[ "topology.sets.closeds", "topology.quasi_separated" ]
[ "t2_space" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83
coe_top [compact_space α] : (↑(⊤ : compacts α) : set α) = univ
rfl
lemma
topological_space.compacts.coe_top
topology.sets
src/topology/sets/compacts.lean
[ "topology.sets.closeds", "topology.quasi_separated" ]
[ "compact_space" ]
https://github.com/leanprover-community/mathlib
65a1391a0106c9204fe45bc73a039f056558cb83