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Diffstat (limited to 'theories/ssr/ssrsetoid.v')
| -rw-r--r-- | theories/ssr/ssrsetoid.v | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/theories/ssr/ssrsetoid.v b/theories/ssr/ssrsetoid.v new file mode 100644 index 0000000000..7c5cd135fe --- /dev/null +++ b/theories/ssr/ssrsetoid.v @@ -0,0 +1,38 @@ +(************************************************************************) +(* * The Coq Proof Assistant / The Coq Development Team *) +(* v * INRIA, CNRS and contributors - Copyright 1999-2019 *) +(* <O___,, * (see CREDITS file for the list of authors) *) +(* \VV/ **************************************************************) +(* // * This file is distributed under the terms of the *) +(* * GNU Lesser General Public License Version 2.1 *) +(* * (see LICENSE file for the text of the license) *) +(************************************************************************) + +(** #<style> .doc { font-family: monospace; white-space: pre; } </style># **) + +(** Compatibility layer for [under] and [setoid_rewrite]. + + This file is intended to be required by [Require Import Setoid]. + + In particular, we can use the [under] tactic with other relations + than [eq] or [iff], e.g. a [RewriteRelation], by doing: + [Require Import ssreflect. Require Setoid.] + + This file's instances have priority 12 > other stdlib instances. + + (Note: this file could be skipped when porting [under] to stdlib2.) + *) + +Require Import ssrclasses. +Require Import ssrunder. +Require Import RelationClasses. +Require Import Relation_Definitions. + +(** Reconcile [Coq.Classes.RelationClasses.Reflexive] with + [Coq.ssr.ssrclasses.Reflexive] *) + +Instance compat_Reflexive : + forall {A} {R : relation A}, + RelationClasses.Reflexive R -> + ssrclasses.Reflexive R | 12. +Proof. now trivial. Qed. |