Corpus formal_theorem canonical 2026-05-27T20:53:50+00:00
Corpus v3 · Formal theorem cid005654FTH0392canonicalv1

code_decode_id_roundtrip (theorem)

/-- [II.T35] Formal proof: Decode . Code = id for the identity function. This follows from reduction idempotence: reduce(reduce(x, k), k) = reduce(x, k). -/

Formalization

lean_axiom_freesorries: 0project axioms: 0
  • ModuleTauLib.BookII.Regularity.CodeDecode
  • Declarationcode_decode_id_roundtrip
  • Lean toolchainleanprover/lean4:v4.x.x

Identifiers

  • Corpus ID cid005654
  • Primary alias FTH0392
  • Type Formal theorem
  • Status canonical
  • Visibility public
  • Version v1

Aliases & legacy IDs

code_decode_id_roundtripcode-decode-id-roundtripTauLib.BookII.Regularity.CodeDecode::code_decode_id_roundtrip

Release lines

corpus_v2corpus_v3_working

Version & History

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

Status disclaimer

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