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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 Flattening.hpp
* Defines class Flattening implementing the flattening inference rule.
* @since 24/12/2003 Manchester
*/
#ifndef __Flattening__
#define __Flattening__
#include "Forwards.hpp"
#include "Kernel/Formula.hpp"
namespace Shell {
using namespace Kernel;
/**
* Class implementing flattening-related procedures.
* @since 23/01/2004 Manchester, changed to include info about positions
*/
class Flattening
{
public:
static FormulaUnit* flatten (FormulaUnit*);
static Formula* flatten (Formula* f){
Formula* res = innerFlatten(f);
res->label(f->getLabel());
return res;
}
static FormulaList* flatten (FormulaList*,Connective con);
static Literal* flatten (Literal*);
static TermList flatten (TermList);
static Formula* getFlattennedNegation(Formula* f);
private:
static Formula* innerFlatten(Formula*);
}; // class Flattening
}
#endif