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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
129 B
Plaintext
7 lines
129 B
Plaintext
Bool.not
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: ∀(x: Bool) Bool
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= λx
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use P = λx Bool
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use true = {Bool.false:_}
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use false = {Bool.true:_}
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(~x P true false) |