Corpus formal_theorem canonical 2026-05-27T20:53:50+00:00
Corpus v3 · Formal theorem cid005403FTH0141canonicalv1

stagewise_naturality_strong (theorem)

/-- [II.L13] Strong naturality (structural): reduce(bndlift(x, k+1), k+1) = bndlift(x, k). This is: reduce(reduce(x, k+2), k+1) = reduce(x, k+1), which follows from reduction_compat since k+1 <= k+2. -/

Formalization

lean_axiom_freesorries: 0project axioms: 0
  • ModuleTauLib.BookII.CentralTheorem.ExtensionsOmegaGerms
  • Declarationstagewise_naturality_strong
  • Lean toolchainleanprover/lean4:v4.x.x

Identifiers

  • Corpus ID cid005403
  • Primary alias FTH0141
  • Type Formal theorem
  • Status canonical
  • Visibility public
  • Version v1

Aliases & legacy IDs

stagewise_naturality_strongstagewise-naturality-strongTauLib.BookII.CentralTheorem.ExtensionsOmegaGerms::stagewise_naturality_strong

Release lines

corpus_v2corpus_v3_working

Version & History

  • v1 · 2026-05-10 imported from v2 taulib declarations

Status disclaimer

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