lean2/tests/lean/run/tactic10.lean

import logic

exit -- TODO
theorem tst (a b : Bool) (H : a ↔ b) : b ↔ a
:= by (apply iff_intro,
       assume Hb, iff_mp_right H Hb,
       assume Ha, iff_mp_left H Ha)
feat(frontends/lean): add exact_apply Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-06-30 07:51:11 +00:00			`import logic`

feat(frontends/lean): remove build_tactic_cmds, and use expressions for representing tactics Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-07-02 03:43:53 +00:00			`exit -- TODO`
feat(frontends/lean): add exact_apply Signed-off-by: Leonardo de Moura <leonardo@microsoft.com> 2014-06-30 07:51:11 +00:00			`theorem tst (a b : Bool) (H : a ↔ b) : b ↔ a`
			`:= by (apply iff_intro,`
			`assume Hb, iff_mp_right H Hb,`
			`assume Ha, iff_mp_left H Ha)`