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LeanPool.RegtsSevenster.RS.Summit

The theorems, unconditionally #

The theorems of record, carrying no hypothesis: Deligne's theorem, in fibre-functor form, is RS.deligne_theorem (RS/Classical/Deligne/DeligneAssembly.lean), so the forms in RS/TheoremForward.lean, RS/TheoremQuant.lean, RS/TheoremTotal.lean, RS/TheoremDimension.lean, RS/TheoremPadding.lean and RS/TheoremConverse.lean that take it as an argument are applied to it here. Those forms remain available alongside: they exhibit the dependency structure, which is what a reader checking the argument against the literature wants.

The envelope's semisimplicity and abelianness come from the factorial trace obstruction. Assembly/BlueprintFactorial checks that the forward summits use this theorem and exclude the appendix nilpotent-trace and trace-zeta mechanisms.

The axiom checks are pinned in RS/Assembly/BlueprintDeligne.lean.

The Regts–Sevenster theorem: every graph parameter with exponentially bounded edge-connection rank is a mixed partition function.

The Regts–Sevenster theorem, quantitative form.

The Regts–Sevenster theorem with at most R colours in total: the representing functional satisfies k + 2 * ℓ ≤ R.

Every parameter with exponentially bounded connection rank has a model attaining its minimum total colour dimension.

The even connection-rank growth rate is the minimum total number of colours of a representing mixed model.

theorem RS.regts_sevenster_prescribed (f : ClosedFragment → ℂ) (hempty : f emptyClosedFragment = 1) (hiso : ∀ (W₁ W₂ : ClosedFragment) (a : Fragment.Equiv W₁ W₂), f W₁ = f W₂) (k ℓ : ℕ) :
(∃ (h : MixedFunctional k ℓ), h.Represents f) ↔ PrescribedColourBounds f k ℓ

Prescribed parity dimensions are characterized by the total rank bound and the free-circle value.

theorem RS.regts_sevenster_characterisation (f : ClosedFragment → ℂ) (hempty : f emptyClosedFragment = 1) (hiso : ∀ (W₁ W₂ : ClosedFragment) (a : Fragment.Equiv W₁ W₂), f W₁ = f W₂) :

The characterisation: for a normalised isomorphism-invariant parameter, bounded edge-connection rank and being a mixed partition function are equivalent.

theorem RS.regts_sevenster_quant_characterisation (f : ClosedFragment → ℂ) (hempty : f emptyClosedFragment = 1) (hiso : ∀ (W₁ W₂ : ClosedFragment) (a : Fragment.Equiv W₁ W₂), f W₁ = f W₂) :

The quantitative round trip.