Idris2/tests/idris2/reg045/withparams.idr

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-- Testing that 'with' works under parameters that are implicits
parameters {0 A : Type} (pred : A -> Bool)
foo : A -> Bool
foo x = case pred x of
True => False
False => True
bar : (x : A) -> not (pred x) = foo x
bar a with (pred a)
bar a | True = Refl
bar a | False = Refl