Corpus formal_theorem canonical 2026-05-27T20:53:50+00:00
Corpus v3 · Formal theorem cid006077FTH0812canonicalv1

euler_phi_primorial_4 (theorem)

/-- [III.T67] Euler phi at primorial 4 = φ(210) = 1·2·4·6 = 48. -/

Formalization

lean_axiom_freesorries: 0project axioms: 0
  • ModuleTauLib.BookIII.Spectral.SieveInfrastructure
  • Declarationeuler_phi_primorial_4
  • Lean toolchainleanprover/lean4:v4.x.x

Identifiers

  • Corpus ID cid006077
  • Primary alias FTH0812
  • Type Formal theorem
  • Status canonical
  • Visibility public
  • Version v1

Aliases & legacy IDs

euler_phi_primorial_4euler-phi-primorial-4TauLib.BookIII.Spectral.SieveInfrastructure::euler_phi_primorial_4

Release lines

corpus_v2corpus_v3_working

Version & History

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

Status disclaimer

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