lean2/tests/lean/tactic8.lean.expected.out

  Set: pp::colors
  Set: pp::unicode
  Proved: T
theorem T (a b : Bool) : a ∨ b ⇒ ¬ b ⇒ a :=
    Discharge (λ H : a ∨ b, Discharge (λ H::1 : ¬ b, DisjCases H (λ H : a, H) (λ H : b, AbsurdElim a H H::1)))
-												feat(library/tactic): add absurd_tactic

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

											
										
										
											2013-12-01 15:44:49 +00:00
+								  Set: pp::colors
 								  Set: pp::unicode
 								  Proved: T
-												feat(frontends/lean): use lowercase commands, replace 'endscope' and 'endnamespace' with 'end'

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

											
										
										
											2014-01-05 20:05:08 +00:00
+								theorem T (a b : Bool) : a ∨ b ⇒ ¬ b ⇒ a :=
-												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 10:44:49 +00:00
+								    Discharge (λ H : a ∨ b, Discharge (λ H::1 : ¬ b, DisjCases H (λ H : a, H) (λ H : b, AbsurdElim a H H::1)))