diff options
Diffstat (limited to 'theories/Bool/Bool.v')
| -rw-r--r-- | theories/Bool/Bool.v | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/theories/Bool/Bool.v b/theories/Bool/Bool.v index 5ec8f806..cc12cf47 100644 --- a/theories/Bool/Bool.v +++ b/theories/Bool/Bool.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 *) @@ -458,16 +458,22 @@ Notation demorgan4 := orb_andb_distrib_l (only parsing). (** Absorption *) -Lemma absoption_andb : forall b1 b2:bool, b1 && (b1 || b2) = b1. +Lemma absorption_andb : forall b1 b2:bool, b1 && (b1 || b2) = b1. Proof. destr_bool. Qed. -Lemma absoption_orb : forall b1 b2:bool, b1 || b1 && b2 = b1. +Lemma absorption_orb : forall b1 b2:bool, b1 || b1 && b2 = b1. Proof. destr_bool. Qed. +(* begin hide *) +(* Compatibility *) +Notation absoption_andb := absorption_andb (only parsing). +Notation absoption_orb := absorption_orb (only parsing). +(* end hide *) + (*********************************) (** * Properties of [xorb] *) (*********************************) |