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11 lines
394 B
Nim
11 lines
394 B
Nim
## This module provides further logic operators like 'forall' and 'exists'
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## They are only supported in `.ensures` etc pragmas.
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proc `->`*(a, b: bool): bool {.magic: "Implies".}
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proc `<->`*(a, b: bool): bool {.magic: "Iff".}
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proc forall*(args: varargs[untyped]): bool {.magic: "Forall".}
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proc exists*(args: varargs[untyped]): bool {.magic: "Exists".}
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proc old*[T](x: T): T {.magic: "Old".}
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