diff options
Diffstat (limited to 'theories/Classes/EquivDec.v')
| -rw-r--r-- | theories/Classes/EquivDec.v | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/theories/Classes/EquivDec.v b/theories/Classes/EquivDec.v index 8e3715ff..59e800c2 100644 --- a/theories/Classes/EquivDec.v +++ b/theories/Classes/EquivDec.v @@ -1,6 +1,6 @@ (************************************************************************) (* v * The Coq Proof Assistant / The Coq Development Team *) -(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2014 *) +(* <O___,, * INRIA - CNRS - LIX - LRI - PPS - Copyright 1999-2015 *) (* \VV/ **************************************************************) (* // * This file is distributed under the terms of the *) (* * GNU Lesser General Public License Version 2.1 *) @@ -53,7 +53,9 @@ Local Open Scope program_scope. (** Invert the branches. *) -Program Definition nequiv_dec `{EqDec A} (x y : A) : { x =/= y } + { x === y } := swap_sumbool (x == y). +Program Definition nequiv_dec `{EqDec A} (x y : A) : { x =/= y } + { x === y } := + swap_sumbool (x == y). + (** Overloaded notation for inequality. *) @@ -138,8 +140,7 @@ Program Instance list_eqdec `(eqa : EqDec A eq) : ! EqDec (list A) eq := | _, _ => in_right end }. - Solve Obligations using unfold equiv, complement in * ; program_simpl ; intuition (discriminate || eauto). - - Next Obligation. destruct y ; intuition eauto. Defined. + Next Obligation. destruct y ; unfold not in *; eauto. Defined. - Solve Obligations using unfold equiv, complement in * ; program_simpl ; intuition (discriminate || eauto). + Solve Obligations with unfold equiv, complement in * ; + program_simpl ; intuition (discriminate || eauto). |