adamc@82: (* Copyright (c) 2008, Adam Chlipala
adamc@82:  * All rights reserved.
adamc@82:  *
adamc@82:  * Redistribution and use in source and binary forms, with or without
adamc@82:  * modification, are permitted provided that the following conditions are met:
adamc@82:  *
adamc@82:  * - Redistributions of source code must retain the above copyright notice,
adamc@82:  *   this list of conditions and the following disclaimer.
adamc@82:  * - Redistributions in binary form must reproduce the above copyright notice,
adamc@82:  *   this list of conditions and the following disclaimer in the documentation
adamc@82:  *   and/or other materials provided with the distribution.
adamc@82:  * - The names of contributors may not be used to endorse or promote products
adamc@82:  *   derived from this software without specific prior written permission.
adamc@82:  *
adamc@82:  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
adamc@82:  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
adamc@82:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
adamc@82:  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
adamc@82:  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
adamc@82:  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
adamc@82:  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
adamc@82:  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
adamc@82:  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
adamc@82:  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
adamc@82:  * POSSIBILITY OF SUCH DAMAGE.
adamc@82:  *)
adamc@82: 
adamc@82: signature DISJOINT = sig
adamc@82:     
adamc@82:     type env
adamc@82: 
adamc@82:     val empty : env
adamc@82:     val enter : env -> env
adamc@82: 
adamc@90:     type goal = ErrorMsg.span * ElabEnv.env * env * Elab.con * Elab.con
adamc@90: 
adamc@628:     val assert : ElabEnv.env -> env -> Elab.con * Elab.con -> env
adamc@90: 
adamc@90:     val prove : ElabEnv.env -> env -> Elab.con * Elab.con * ErrorMsg.span -> goal list
adamc@90: 
adamc@478:     val p_env : env -> unit
adamc@478: 
adamc@1034:     val proved : int ref
adamc@1034:     val reset : unit -> unit
adamc@1034: 
adamc@82: end