blob: 814b0014c2d7ca6f721ff852c871f49bf485f5d6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
/********************* */
/*! \file global_negate.h
** \verbatim
** Top contributors (to current version):
** Andrew Reynolds
** This file is part of the CVC4 project.
** Copyright (c) 2009-2017 by the authors listed in the file AUTHORS
** in the top-level source directory) and their institutional affiliations.
** All rights reserved. See the file COPYING in the top-level source
** directory for licensing information.\endverbatim
**
** \brief global_negate
**/
#include "cvc4_private.h"
#ifndef __CVC4__THEORY__QUANTIFIERS__GLOBAL_NEGATE_H
#define __CVC4__THEORY__QUANTIFIERS__GLOBAL_NEGATE_H
#include <vector>
#include "expr/node.h"
namespace CVC4 {
namespace theory {
namespace quantifiers {
/** GlobalNegate
*
* This class updates a set of assertions to be equivalent to the negation of
* these assertions. In detail, if assertions is:
* F1, ..., Fn
* then we update this vector to:
* forall x1...xm. ~( F1 ^ ... ^ Fn ), true, ..., true
* where x1...xm are the free variables of F1...Fn.
*/
class GlobalNegate
{
public:
GlobalNegate() {}
~GlobalNegate() {}
/** simplify assertions
*
* Replaces assertions with a set of assertions that is equivalent to its
* negation.
*/
void simplify(std::vector<Node>& assertions);
};
} /* CVC4::theory::quantifiers namespace */
} /* CVC4::theory namespace */
} /* CVC4 namespace */
#endif /* __CVC4__THEORY__QUANTIFIERS__GLOBAL_NEGATE_H */
|
