21 lines
712 B
C
21 lines
712 B
C
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/*
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Copyright (c) 2014 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/environment.h"
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namespace lean {
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/** \brief Return true iff the given environment has <tt>sorry.{l} : Pi {A : Type.{l}}, A</tt> */
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bool has_sorry(environment const & env);
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/** \brief Declare <tt>sorry.{l} : Pi {A : Type.{l}}, A</tt> in the given environment if it doesn't already contain it.
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Throw an exception if the environment already contains a declaration named \c sorry. */
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environment declare_sorry(environment const & env);
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/** \brief Return the constant \c sorry */
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expr const & get_sorry_constant();
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}
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