feat(library/standard): add bit, char, and string types
Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
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3 changed files with 25 additions and 1 deletions
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library/standard/bit.lean
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library/standard/bit.lean
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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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namespace bit
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inductive bit : Type :=
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| b0 : bit
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| b1 : bit
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notation `'0` := b0
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notation `'1` := b1
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end
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import logic tactic num
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import logic tactic num string
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library/standard/string.lean
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library/standard/string.lean
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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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import bit
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using bit
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namespace string
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inductive char : Type :=
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| ascii : bit → bit → bit → bit → bit → bit → bit → bit → 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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end
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