diff options
Diffstat (limited to 'theories/Logic/Eqdep_dec.v')
| -rw-r--r-- | theories/Logic/Eqdep_dec.v | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/theories/Logic/Eqdep_dec.v b/theories/Logic/Eqdep_dec.v index 0758bd1f9..e4adc8cf1 100644 --- a/theories/Logic/Eqdep_dec.v +++ b/theories/Logic/Eqdep_dec.v @@ -63,10 +63,10 @@ Section EqdepDec. Let nu_constant : forall (y:A) (u v:x = y), nu u = nu v. intros. unfold nu. - case (eq_dec y); intros. + destruct (eq_dec y) as [Heq|Hneq]. reflexivity. - case n; trivial. + case Hneq; trivial. Qed. @@ -117,12 +117,11 @@ Section EqdepDec. intros. cut (proj (ex_intro P x y) y = proj (ex_intro P x y') y). simpl. - case (eq_dec x). - intro e. - elim e using K_dec_one_var; trivial. + destruct (eq_dec x) as [Heq|Hneq]. + elim Heq using K_dec_one_var; trivial. intros. - case n; trivial. + case Hneq; trivial. case H. reflexivity. |