20 lines
589 B
Text
20 lines
589 B
Text
-- 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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import bool
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using bool
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namespace string
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inductive char : Type :=
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| ascii : bool → bool → bool → bool → bool → bool → bool → bool → char
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inductive string : Type :=
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| empty : string
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| str : char → string → string
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theorem inhabited_char [instance] : inhabited char
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:= inhabited_intro (ascii b0 b0 b0 b0 b0 b0 b0 b0)
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theorem inhabited_string [instance] : inhabited string
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:= inhabited_intro empty
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end
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