/Prelude-v21.1.0/Bool/or.dhall

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The or function returns True if there are any True elements in the List and returns False otherwise

Examples

or [ True, False, True ] ≡ True
or ([] : List Bool) ≡ False

Source

{-|
The `or` function returns `True` if there are any `True` elements in the `List`
and returns `False` otherwise
-}
let or
: List Bool → Bool
= λ(xs : List Bool) →
List/fold Bool xs Bool (λ(l : Bool) → λ(r : Bool) → l || r) False

let example0 = assert : or [ True, False, True ] ≡ True

let example1 = assert : or ([] : List Bool) ≡ False

in or