From 9043add656177eeac1491a73d2f3ab92bec0013c Mon Sep 17 00:00:00 2001
From: Benjamin Barenblat <bbaren@debian.org>
Date: Sat, 29 Dec 2018 14:31:27 -0500
Subject: Imported Upstream version 8.8.2

---
 proofs/proof_type.ml | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 proofs/proof_type.ml

(limited to 'proofs/proof_type.ml')

diff --git a/proofs/proof_type.ml b/proofs/proof_type.ml
new file mode 100644
index 00000000..149f30c6
--- /dev/null
+++ b/proofs/proof_type.ml
@@ -0,0 +1,28 @@
+(************************************************************************)
+(*         *   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)         *)
+(************************************************************************)
+
+(** Legacy proof engine. Do not use in newly written code. *)
+
+open Evd
+open Constr
+
+(** This module defines the structure of proof tree and the tactic type. So, it
+   is used by [Proof_tree] and [Refiner] *)
+
+type prim_rule =
+  | Refine of constr
+
+(** Nowadays, the only rules we'll consider are the primitive rules *)
+
+type rule = prim_rule
+
+type goal = Goal.goal
+
+type tactic = goal sigma -> goal list sigma
-- 
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