Merge PR #6775: Allow using cumulativity without forcing strict constraints.

1 files changed, 19 insertions, 0 deletions

diff --git a/clib/orderedType.mli b/clib/orderedType.mli
new file mode 100644
index 0000000000..3578ea0d83
--- /dev/null
+++ b/clib/orderedType.mli
@@ -0,0 +1,19 @@
+(************************************************************************)
+(*         *   The Coq Proof Assistant / The Coq Development Team       *)
+(*  v      *   INRIA, CNRS and contributors - Copyright 1999-2018       *)
+(* <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)         *)
+(************************************************************************)
+
+module type S =
+sig
+  type t
+  val compare : t -> t -> int
+end
+
+module Pair (M:S) (N:S) : S with type t = M.t * N.t
+
+module UnorderedPair (M:S) : S with type t = M.t * M.t