lean2/tests/lean/disj1.lean.expected.out at 411ebbc3c17f6fb99fd1619ceb8aa26c345509fd - michael/lean2 - Forgejo: Beyond coding. We forge.

michael/lean2

Leonardo de Moura 411ebbc3c1 refactor(library/basic_thms): move the proof of all basic theorems to a .Lean file

This commit also adds several new theorems that are useful for implementing the simplifier.
TODO: perhaps we should remove the declarations at basic_thms.h?

Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>

2013-12-29 03:04:49 -08:00

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   Set: pp::colors
   Set: pp::unicode
   Imported 'tactic'
   Proved: T1
   Proved: T2
 Theorem T2 (a b : Bool) : a ∨ b ⇒ b ∨ a :=
     Discharge (λ H : a ∨ b, DisjCases H (λ H : a, Disj2 b H) (λ H : b, Disj1 H a))