25 lines
1.3 KiB
C++
25 lines
1.3 KiB
C++
/*
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Copyright (c) 2013 Microsoft Corporation. All rights reserved.
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Released under Apache 2.0 license as described in the file LICENSE.
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Author: Leonardo de Moura
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*/
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#pragma once
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#include "kernel/context.h"
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namespace lean {
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/** \brief Return true iff \c n occurs in \c m */
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bool occurs(expr const & n, expr const & m);
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/** \brief Return true iff there is a constant named \c n in \c m. */
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bool occurs(name const & n, expr const & m);
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/** \brief Return true iff \c n occurs in context \c c. */
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bool occurs(expr const & n, context const & c);
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/** \brief Return true iff there is a constant named \c n in context \c c. */
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bool occurs(name const & n, context const & c);
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/** \brief Return true iff \c n occurs in context \c c or the array of expressions es[sz]. */
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bool occurs(expr const & n, context const & c, unsigned sz, expr const * es);
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inline bool occurs(expr const & n, context const & c, std::initializer_list<expr> const & l) { return occurs(n, c, l.size(), l.begin()); }
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/** \brief Return true iff there is a constant named \c n in context \c c or the array of expressions es[sz]. */
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bool occurs(name const & n, context const & c, unsigned sz, expr const * es);
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inline bool occurs(name const & n, context const & c, std::initializer_list<expr> const & l) { return occurs(n, c, l.size(), l.begin()); }
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}
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