Actual gradient agreement and matched keys produce all four cross holes
Lax342547.FourHoles · concepts/Lax342547/FourHoles.lean · lax-342547
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Lemma
The paired witnesses supply tensor sharing and role parity. Whole-space gradient agreement of actual cross contractions then gives both hole equations for each of the four cross pairs, with the original left and right witness lists.
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| 1 | import Lax342547.GradientRealization |
| 2 | import Lax342547.RawContractions |
| 3 | |
| 4 | /-! |
| 5 | --- |
| 6 | title: Actual gradient agreement and matched keys produce all four cross holes |
| 7 | type: lemma |
| 8 | --- |
| 9 | The paired witnesses supply tensor sharing and role parity. Whole-space gradient agreement of actual cross contractions then gives both hole equations for each of the four cross pairs, with the original left and right witness lists. |
| 10 | -/ |
| 11 | |
| 12 | namespace Lax342547.FourHoles |
| 13 | |
| 14 | open Lax342547.MomentSpace Lax342547.TagGeometry Lax342547.ConcreteGeometry |
| 15 | open Lax342547.ConcreteCut Lax342547.CutProfiles Lax342547.PairedWitnesses |
| 16 | open Lax342547.TableContractions Lax342547.RawContractions Lax342547.RawFrames |
| 17 | open Lax342547.HoleRelation |
| 18 | |
| 19 | axiom four_holes {k n b degree r J : ℕ} {hr : 2 * r ≤ n} |
| 20 | {H N : Type} [Fintype H] [Fintype N] {E : Moment k n b degree} |
| 21 | (W : Lists k n b degree r hr) |
| 22 | (D : Testers (k := k) (b := b) (degree := degree) hr) |
| 23 | (L R : Fin J → Component (Tag k) → Component (Tag k) → Moment k n b degree) |
| 24 | (oA oB : Unit (H := H) (N := N) (E := E)) |
| 25 | (holes : HoleData (Component (Tag k) → Frame (Coordinate k n b degree) H N E) |
| 26 | (Profile k n b degree) (Component (Tag k) → Matrix N N Binary)) |
| 27 | (hrole : holes.a = D.role) (hgradient : holes.T = gradient D L R) |
| 28 | (hU : ∀ o, holes.U o = (profileMap o).comp (Profile k n b degree).subtype) |
| 29 | (hu : ∀ o, holes.u o = profileContraction o) |
| 30 | (hkeys : MatchedKeys W oA oB) |
| 31 | (hroles : ∀ i z, D.role (leftWitness W i z) + D.role (rightWitness W i z) = 1) |
| 32 | (hleft : ∀ i z x, fullContraction (rawForms oA oB) (Profile k n b degree) i z x = |
| 33 | (D.role + gradient D L R (leftWitness W i z)) x) |
| 34 | (hright : ∀ i z x, fullContraction (rawForms oA oB).flip (Profile k n b degree) z i x = |
| 35 | (D.role + gradient D L R (rightWitness W i z)) x) : |
| 36 | ∀ i z, Hole holes (oA i) (oB z) |
| 37 | |
| 38 | end Lax342547.FourHoles |
| 39 |
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