Corpus formal_theorem canonical 2026-05-27T20:53:50+00:00
Corpus v3 · Formal theorem cid005353FTH0091canonicalv1

cat_tau_thin (theorem)

/-- [I.P25] Cat_τ is thin: if two tower-coherent stagewise functions agree at stage d₀ for all inputs, they agree at all stages ≤ d₀. This is a direct corollary of the τ-Identity Theorem (I.T21). -/

Formalization

lean_axiom_freesorries: 0project axioms: 0
  • ModuleTauLib.BookI.Topos.EarnedArrows
  • Declarationcat_tau_thin
  • Lean toolchainleanprover/lean4:v4.x.x

Identifiers

  • Corpus ID cid005353
  • Primary alias FTH0091
  • Type Formal theorem
  • Status canonical
  • Visibility public
  • Version v1

Aliases & legacy IDs

cat_tau_thincat-tau-thinTauLib.BookI.Topos.EarnedArrows::cat_tau_thin

Release lines

corpus_v2corpus_v3_working

Version & History

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

Status disclaimer

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