Commit 8b197368 authored by Robbert Krebbers's avatar Robbert Krebbers

Use (more primitive) case instead of destruct in done tactic.

parent fc78a6ba
......@@ -56,7 +56,7 @@ Ltac done :=
| contradiction
| solve [apply not_symmetry; trivial]
| split ]
| match goal with H : ¬_ |- _ => solve [destruct H; trivial] end ].
| match goal with H : ¬_ |- _ => solve [case H; trivial] end ].
Tactic Notation "by" tactic(tac) :=
tac; done.
......
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