diff options
| -rw-r--r-- | contrib/subtac/Utils.v | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/contrib/subtac/Utils.v b/contrib/subtac/Utils.v index 08fa8fbc22..6e1a8ee44f 100644 --- a/contrib/subtac/Utils.v +++ b/contrib/subtac/Utils.v @@ -10,6 +10,9 @@ Notation "( x & ? )" := (@exist _ _ x _) : core_scope. Notation " ! " := (False_rect _ _). +(* Logical if : keep a trace of the control flow in obligations. *) +Notation " 'lif' b 'then' e 'else' f " := (match b with true => e | false => f end) (at level 30). + Definition ex_pi1 (A : Prop) (P : A -> Prop) (t : ex P) : A. intros. induction t. |