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import OAI.LinearAlgebra.MatrixMultiplication.Duality.ProgramIndependence
import OAI.LinearAlgebra.MatrixMultiplication.Duality.InformationConditioning
import OAI.LinearAlgebra.MatrixMultiplication.Duality.InformationTransport
import OAI.LinearAlgebra.MatrixMultiplication.Completion.ProgramPrefixes
namespace OAI
/-! Dual matrix multiplication exponents and finite rectangular constructions. -/
noncomputable section
namespace MatrixMultiplication.DualProgramIndependence
universe u w
open MatrixMultiplication.Foundation RecursiveCompletion CompletionLabels
open CompletionLaws CompletionColorLaws CompletionProductLaws
open DualInformation DualInformationTransport TopologicalFlatten
open scoped BigOperators
attribute [local instance 10000] Classical.propDecidable Classical.decEq
attribute [local instance 11000] instDecidableEqFin
variable {X Y Z : Type u} {Code : Type w} [Fintype X] [Fintype Y] [Fintype Z]
[Fintype Code] [Inhabited Code] {depth m : ℕ}
def slotCut (depth k : ℕ) (i j : Fin m) : ℕ :=
if j.val < i.val then depth else if j = i then k else 0
def slotPrior (S : FlaggedTensor X Y Z)
(p : Program (Leaf S) (Coordinate X Y Z) Color Code depth)
(i : Fin m) (k : ℕ) (j : Fin m) (a : Leaf S) :
Color × LabelRecord (fun _ => Code) (slotCut depth k i j) :=
(leafColor S a, labelRecordOf p.labels (slotCut depth k i j) a)
def slotLabel (S : FlaggedTensor X Y Z)
(p : Program (Leaf S) (Coordinate X Y Z) Color Code depth)
(i : Fin m) (k : ℕ) (j : Fin m) (a : Leaf S) : Code :=
if j = i then p.labels k a else default
omit [Fintype X] [Fintype Y] [Fintype Z] [Fintype Code] [Inhabited Code] in
theorem slotPrior_word_eq_iff (S : FlaggedTensor X Y Z)
(p : Program (Leaf S) (Coordinate X Y Z) Color Code depth)
(i : Fin m) (k : ℕ) (a b : Fin m → Leaf S) :
(fun j => slotPrior S p i k j (a j)) = (fun j => slotPrior S p i k j (b j)) ↔
(∀ j, leafColor S (a j) = leafColor S (b j)) ∧
((∀ j : Fin m, j.val < i.val →
labelRecordOf p.labels depth (a j) = labelRecordOf p.labels depth (b j)) ∧
labelRecordOf p.labels k (a i) = labelRecordOf p.labels k (b i)) := by
constructor
· intro h
refine ⟨fun j => congrArg Prod.fst (congrFun h j), ?_, ?_⟩
· intro j hj
have hs := congrArg Prod.snd (congrFun h j)
change labelRecordOf p.labels (slotCut depth k i j) (a j) =
labelRecordOf p.labels (slotCut depth k i j) (b j) at hs
rw [labelRecordOf_eq_iff] at hs ⊢
simpa only [slotCut, ite_eq_left hj] using hs
· have hs := congrArg Prod.snd (congrFun h i)
change labelRecordOf p.labels (slotCut depth k i i) (a i) =
labelRecordOf p.labels (slotCut depth k i i) (b i) at hs
rw [labelRecordOf_eq_iff] at hs ⊢
simpa [slotCut] using hs
· rintro ⟨hc, hp, hi⟩
funext j
apply Prod.ext (hc j)
change labelRecordOf p.labels (slotCut depth k i j) (a j) =
labelRecordOf p.labels (slotCut depth k i j) (b j)
rw [labelRecordOf_eq_iff]
intro n hn
by_cases hj : j.val < i.val
· have hn' : n < depth := by simpa only [slotCut, ite_eq_left hj] using hn
exact label_eq_of_record_eq p.labels (hp j hj) hn'
· by_cases hji : j = i
· subst j
have hn' : n < k := by simpa [slotCut] using hn
exact label_eq_of_record_eq p.labels hi hn'
· simp only [slotCut, ite_eq_right hj, ite_eq_right hji] at hn
exact (Nat.not_lt_zero n hn).elim
omit [Fintype X] [Fintype Y] [Fintype Z] [Fintype Code] in
theorem slotLabel_word_eq_iff (S : FlaggedTensor X Y Z)
(p : Program (Leaf S) (Coordinate X Y Z) Color Code depth)
(i : Fin m) (k : ℕ) (a b : Fin m → Leaf S) :
(fun j => slotLabel S p i k j (a j)) = (fun j => slotLabel S p i k j (b j)) ↔
p.labels k (a i) = p.labels k (b i) := by
constructor
· intro h
simpa only [slotLabel, ite_eq_left rfl, ite_true] using congrFun h i
· intro h
funext j
by_cases hji : j = i
· subst j
simpa only [slotLabel, ite_eq_left rfl, ite_true] using h
· simp only [slotLabel, ite_eq_right hji]
theorem iidColorLaw_slot_factorization (S : FlaggedTensor X Y Z)
(p : Program (Leaf S) (Coordinate X Y Z) Color Code depth)
(center output : Color)
(pc : FiniteLaw (ColorSlice S center)) (po : FiniteLaw (ColorSlice S output))
(α : ℝ) (hα : 0 ≤ α) (hα' : α ≤ 1) (hbranch : center ≠ output ∨ α = 0)
(i : Fin m) (k : ℕ)
(hc : ConditionalMassFactorization pc (fun a => labelRecordOf p.labels k a.val)
(fun a => p.labels k a.val) (fun a => a.val.val.1))
(ho : ConditionalMassFactorization po (fun a => labelRecordOf p.labels k a.val)
(fun a => p.labels k a.val) (fun a => a.val.val.1)) :
ConditionalMassFactorization (iidColorLaw S center output pc po m α hα hα')
(fun a j => slotPrior S p i k j (a j))
(fun a j => slotLabel S p i k j (a j)) (fun a j => (a j).val.1) := by
apply independentProduct_factorization
(fun _ : Fin m => colorMix S center output pc po α hα hα')
(slotPrior S p i k) (slotLabel S p i k) (fun _ a => a.val.1)
intro j
by_cases hji : j = i
· subst j
apply mass_factorization_of_same_partitions (colorMix S center output pc po α hα hα')
(fun a => (leafColor S a, labelRecordOf p.labels k a)) (p.labels k) (fun a => a.val.1)
· intro a b
simp only [slotPrior, Prod.mk.injEq, labelRecordOf_eq_iff]
simp [slotCut]
· intro a b
simp [slotLabel]
· intro a b
rfl
· exact colorMix_recorded_factorization S center output pc po α hα hα' hbranch
(labelRecordOf p.labels k) (p.labels k) (fun a => a.val.1) hc ho
· have hl : slotLabel S p i k j = (fun _ => (default : Code)) := by
funext a
simp [slotLabel, hji]
rw [hl]
exact factorization_constant_label (colorMix S center output pc po α hα hα')
(slotPrior S p i k j) (default : Code) (fun a => a.val.1)
def slotCompletionEvent (center output : Color) (i : Fin m) (k : ℕ)
(r : ∀ j : Fin m, Color × LabelRecord (fun _ => Code) (slotCut depth k i j)) : Prop :=
raisedFlag center output (fun j => (r j).1 = output) ∧
∀ j, (r j).1 = center ∨ (r j).1 = output
theorem condition_slot_factorization (S : FlaggedTensor X Y Z)
(p : Program (Leaf S) (Coordinate X Y Z) Color Code depth)
(center output : Color)
(pc : FiniteLaw (ColorSlice S center)) (po : FiniteLaw (ColorSlice S output))
(α : ℝ) (hα : 0 ≤ α) (hα' : α < 1) (hbranch : center ≠ output ∨ α = 0)
(hm : 0 < m) (i : Fin m) (k : ℕ)
(hc : ConditionalMassFactorization pc (fun a => labelRecordOf p.labels k a.val)
(fun a => p.labels k a.val) (fun a => a.val.val.1))
(ho : ConditionalMassFactorization po (fun a => labelRecordOf p.labels k a.val)
(fun a => p.labels k a.val) (fun a => a.val.val.1)) :
ConditionalMassFactorization
(condition (iidColorLaw S center output pc po m α hα hα'.le)
(completionEvent S center output m)
(completionEvent_mass_pos S center output pc po m hm α hα hα'))
(fun a j => slotPrior S p i k j (a.val j))
(fun a j => slotLabel S p i k j (a.val j)) (fun a j => (a.val j).val.1) := by
exact conditionalMassFactorization_condition
(iidColorLaw S center output pc po m α hα hα'.le)
(fun a j => slotPrior S p i k j (a j))
(fun a j => slotLabel S p i k j (a j)) (fun a j => (a j).val.1)
(slotCompletionEvent center output i k)
(completionEvent_mass_pos S center output pc po m hm α hα hα')
(iidColorLaw_slot_factorization S p center output pc po α hα hα'.le hbranch i k hc ho)
theorem conditionalCompletionLaw_inherited_factorization (S : FlaggedTensor X Y Z)
(p : Program (Leaf S) (Coordinate X Y Z) Color Code depth)
(context_eq : ∀ a, p.context a = leafColor S a)
(view_eq : ∀ side a, p.view side a = coordinate a.val side)
(center output : Color)
(pc : FiniteLaw (ColorSlice S center)) (po : FiniteLaw (ColorSlice S output))
(α : ℝ) (hα : 0 ≤ α) (hα' : α < 1) (hbranch : center ≠ output ∨ α = 0)
(hm : 0 < m) (i : Fin m) (k : ℕ) (hk : k < depth)
(hc : ConditionalMassFactorization pc (fun a => labelRecordOf p.labels k a.val)
(fun a => p.labels k a.val) (fun a => a.val.val.1))
(ho : ConditionalMassFactorization po (fun a => labelRecordOf p.labels k a.val)
(fun a => p.labels k a.val) (fun a => a.val.val.1)) :
ConditionalMassFactorization
(conditionalCompletionLaw S center output pc po m hm α hα hα')
(fun a => labelRecordOf
(completionLocalProgram S center m p context_eq view_eq).labels
(3 + (i.val * depth + k)) a.val)
(fun a => (completionLocalProgram S center m p context_eq view_eq).labels
(3 + (i.val * depth + k)) a.val)
(fun a => a.val.val.1) := by
let e := conditionalLeafEquiv S center output m
let q := condition (iidColorLaw S center output pc po m α hα hα'.le)
(completionEvent S center output m)
(completionEvent_mass_pos S center output pc po m hm α hα hα')
have hslot (a : {w : Fin m → Leaf S // completionEvent S center output m w}) :
slot S center m (e.symm a).val = a.val :=
congrArg Subtype.val (e.apply_symm_apply a)
change ConditionalMassFactorization (q.map e.symm) _ _ _
rw [mass_factorization_map_iff]
apply mass_factorization_of_same_partitions q
(fun a j => slotPrior S p i k j (a.val j))
(fun a j => slotLabel S p i k j (a.val j)) (fun a j => (a.val j).val.1)
· intro a b
rw [slotPrior_word_eq_iff, completionProgram_record_eq_iff _ _ _ _ _ _ i k hk.le]
simp only [(e.symm a).property, (e.symm b).property, true_and, pattern,
hslot, funext_iff]
· intro a b
rw [slotLabel_word_eq_iff,
completionLocalProgram_label_slot _ _ _ _ _ _ i k hk,
completionLocalProgram_label_slot _ _ _ _ _ _ i k hk, hslot, hslot]
simp only [encodeOld, Option.some.injEq, Sum.inr.injEq]
· intro a b
rfl
· exact condition_slot_factorization S p center output pc po α hα hα' hbranch hm i k hc ho
end MatrixMultiplication.DualProgramIndependence
end
end OAI