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18 lines
547 B
Plaintext
18 lines
547 B
Plaintext
String.equal
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: ∀(a: String)
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∀(b: String)
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Bool
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= λa λb
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let P = λx ∀(b: String) (Bool)
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let cons = λa.head λa.tail λb
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let P = λx ∀(a.head: Char) ∀(a.tail: String) (Bool)
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let cons = λb.head λb.tail λa.head λa.tail (Bool.and (U60.equal a.head b.head) (String.equal a.tail b.tail))
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let nil = λa.head λa.tail Bool.false
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(~b P cons nil a.head a.tail)
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let nil = λb
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let P = λx Bool
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let cons = λb.head λb.tail Bool.false
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let nil = Bool.true
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(~b P cons nil)
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(~a P cons nil b)
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