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/********************* */
/*! \file proof_checker.h
** \verbatim
** Top contributors (to current version):
** Gereon Kremer
** This file is part of the CVC4 project.
** Copyright (c) 2009-2021 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 NlExt proof checker utility
**/
#include "cvc4_private.h"
#ifndef CVC4__THEORY__ARITH__NL__EXT__PROOF_CHECKER_H
#define CVC4__THEORY__ARITH__NL__EXT__PROOF_CHECKER_H
#include "expr/node.h"
#include "expr/proof_checker.h"
#include "expr/proof_node.h"
namespace cvc5 {
namespace theory {
namespace arith {
namespace nl {
/**
* A checker for NlExt proofs
*
* This proof checker takes care of all proofs for lemmas from the ext
* subsolver.
*/
class ExtProofRuleChecker : public ProofRuleChecker
{
public:
ExtProofRuleChecker() = default;
~ExtProofRuleChecker() = default;
/** Register all rules owned by this rule checker in pc. */
void registerTo(ProofChecker* pc) override;
protected:
/** Return the conclusion of the given proof step, or null if it is invalid */
Node checkInternal(PfRule id,
const std::vector<Node>& children,
const std::vector<Node>& args) override;
};
} // namespace nl
} // namespace arith
} // namespace theory
} // namespace cvc5
#endif /* CVC4__THEORY__STRINGS__PROOF_CHECKER_H */
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