Package axiom-extensionality: axiom-extensionality

Information

Files

• Package tarball axiom-extensionality-1.3.tgz
• Theory file axiom-extensionality.thy (included in the package tarball)

Theorem

⊦ ∀t. (λx. t x) = t

Input Type Operators

• →
• bool

Input Constants

• =
• Data
  • Bool
    • ∀
    • T

Assumptions

⊦ T ⇔ (λp. p) = λp. p

⊦ (∀) = λp. p = λx. T

⊦ let a d ← (λe. d e) = d ∈ a = λb. (λc. c) = λc. c