{-
Returns `True` if the supplied function returns `True` for any element in the
`List`

Examples:

```
./any Natural Natural/even ([+2, +3, +5] : List Natural) = True

./any Natural Natural/even ([] : List Natural) = False
```
-}
let any : ∀(a : Type) → (a → Bool) → List a → Bool
    =   λ(a : Type)
    →   λ(f : a → Bool)
    →   λ(xs : List a)
    →   List/fold a xs Bool (λ(x : a) → λ(r : Bool) → f x || r) False

in  any