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/****************************************************************************** |
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* Top contributors (to current version): |
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* Gereon Kremer |
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* |
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* This file is part of the cvc5 project. |
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* |
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* Copyright (c) 2009-2021 by the authors listed in the file AUTHORS |
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* in the top-level source directory and their institutional affiliations. |
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* All rights reserved. See the file COPYING in the top-level source |
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* directory for licensing information. |
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* **************************************************************************** |
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* |
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* CAD proof checker utility. |
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*/ |
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#include "cvc5_private.h" |
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#ifndef CVC5__THEORY__ARITH__NL__CAD__PROOF_CHECKER_H |
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#define CVC5__THEORY__ARITH__NL__CAD__PROOF_CHECKER_H |
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#include "expr/node.h" |
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#include "expr/proof_checker.h" |
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namespace cvc5 { |
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namespace theory { |
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namespace arith { |
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namespace nl { |
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namespace cad { |
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/** |
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* A checker for CAD proofs |
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* |
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* This proof checker takes care of the two CAD proof rules ARITH_NL_CAD_DIRECT |
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* and ARITH_NL_CAD_RECURSIVE. It does not do any actual proof checking yet, but |
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* considers them to be trusted rules. |
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*/ |
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class CADProofRuleChecker : public ProofRuleChecker |
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{ |
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public: |
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CADProofRuleChecker() {} |
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~CADProofRuleChecker() {} |
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/** Register all rules owned by this rule checker in pc. */ |
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void registerTo(ProofChecker* pc) override; |
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protected: |
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/** Return the conclusion of the given proof step, or null if it is invalid */ |
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Node checkInternal(PfRule id, |
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const std::vector<Node>& children, |
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const std::vector<Node>& args) override; |
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}; |
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} // namespace cad |
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} // namespace nl |
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} // namespace arith |
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} // namespace theory |
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} // namespace cvc5 |
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#endif /* CVC5__THEORY__STRINGS__PROOF_CHECKER_H */ |