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/*
* This file is part of the source code of the software program
* Vampire. It is protected by applicable
* copyright laws.
*
* This source code is distributed under the licence found here
* https://vprover.github.io/license.html
* and in the source directory
*/
/**
* @file FastCondensation.hpp
* Defines class FastCondensation
*
*/
#ifndef __FastCondensation__
#define __FastCondensation__
#include "Forwards.hpp"
#include "InferenceEngine.hpp"
namespace Inferences
{
using namespace Kernel;
using namespace Indexing;
using namespace Saturation;
/**
* Condensation simplification rule that performs only
* condensations that are easy to check for.
*
* Literal L[X1,...XN] with variables X1,...,XN can be deleted,
* if another literal in the clause is its instance L[t1,...tN]
* such that each Xi either only appears in the deleted literal,
* or ti=Xi.
*
* This condition ensures that matching the two above literals
* will lead to change only in the literal that is being deleted.
*/
class FastCondensation
: public ImmediateSimplificationEngine
{
public:
Clause* simplify(Clause* cl) override;
private:
struct CondensationBinder;
};
};
#endif /*__FastCondensation__*/