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Now, there are two local binders: let x = ... use x = ... The 'let' binder will create a local definition, type-check it, and assign a name to it. When compiled, it will create 'dup' nodes. The 'use' binder is just an alias. It will not bind a new variable, and, when compiled, will create inline copies. Also, for type-checking, it allows creating aliases that are definitionaly equal for the checker.
7 lines
145 B
Plaintext
7 lines
145 B
Plaintext
Bool.or
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: ∀(a: Bool) ∀(b: Bool) Bool
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= λa
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use P = λa ∀(b: Bool) Bool
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use true = λb Bool.true
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use false = λb b
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(~a P true false) |