lean2/tests/lean/tactic10.lean.expected.out at e0eeb7c8d5efc241c523070c91b4dcd47a8e8466 - michael/lean2 - Forgejo: Beyond coding. We forge.

michael/lean2

Leonardo de Moura 09f98ecddc feat(library/tactic): add unfold_tactic() that unfolds every non-hidden definition

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

2013-12-01 10:41:05 -08:00

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   Set: pp::colors
   Set: pp::unicode
   Defined: f
   Defined: g
   Proved: T1
   Defined: h
   Proved: T2
 Theorem T2 (a b : Bool) : (h a b) ⇒ (f b) ⇒ a :=
     Discharge
         (λ H : a ∨ b, Discharge (λ H::1 : ¬ b, DisjCases H (λ H : a, H) (λ H : b, AbsurdImpAny b a H H::1)))