diff options
Diffstat (limited to 'theories/Init/Tactics.v')
| -rw-r--r-- | theories/Init/Tactics.v | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/theories/Init/Tactics.v b/theories/Init/Tactics.v index 2caf6a4b8..4d64b8238 100644 --- a/theories/Init/Tactics.v +++ b/theories/Init/Tactics.v @@ -77,6 +77,10 @@ Ltac false_hyp H G := Ltac case_eq x := generalize (refl_equal x); pattern x at -1; case x. +(* use either discriminate or injection on a hypothesis *) + +Ltac destr_eq H := discriminate H || (try (injection H; clear H; intro H)). + (* Similar variants of destruct *) Tactic Notation "destruct_with_eqn" constr(x) := @@ -185,6 +189,10 @@ Ltac easy := Tactic Notation "now" tactic(t) := t; easy. +(** Slightly more than [easy]*) + +Ltac easy' := repeat split; simpl; easy || now destruct 1. + (** A tactic to document or check what is proved at some point of a script *) Ltac now_show c := change c. |