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48 lines
922 B
C++
48 lines
922 B
C++
/*++
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Copyright (c) 2012 Microsoft Corporation
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Module Name:
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proof_utils.h
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Abstract:
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Utilities for transforming proofs.
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Author:
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Nikolaj Bjorner (nbjorner) 2012-10-12.
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Revision History:
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--*/
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#ifndef _PROOF_UTILS_H_
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#define _PROOF_UTILS_H_
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class proof_utils {
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public:
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/**
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\brief reduce the set of hypotheses used in the proof.
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*/
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static void reduce_hypotheses(proof_ref& pr);
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/**
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\brief Check that a proof does not contain open hypotheses.
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*/
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static bool is_closed(ast_manager& m, proof* p);
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/**
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\brief Permute unit resolution rule with th-lemma
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*/
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static void permute_unit_resolution(proof_ref& pr);
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/**
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\brief Push instantiations created in hyper-resolutions up to leaves.
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This produces a "ground" proof where leaves are annotated by instantiations.
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*/
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static void push_instantiations_up(proof_ref& pr);
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};
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#endif
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