/Prelude-v22.0.0/Integer/nonNegative.dhall
Copy path to clipboardReturns True
for +0
and any positive Integer
.
nonNegative
is more efficient than ./greaterThanEqual +0
or ./greaterThan -1
.
Examples
nonNegative +1 ≡ True
nonNegative +0 ≡ True
nonNegative -1 ≡ False
Source
{-|
Returns `True` for `+0` and any positive `Integer`.
`nonNegative` is more efficient than `./greaterThanEqual +0` or `./greaterThan -1`.
-}
let nonPositive =
./nonPositive.dhall sha256:e00a852eed5b84ff60487097d8aadce53c9e5301f53ff4954044bd68949fac3b
? ./nonPositive.dhall
let nonNegative
: Integer → Bool
= λ(n : Integer) → nonPositive (Integer/negate n)
let example0 = assert : nonNegative +1 ≡ True
let example1 = assert : nonNegative +0 ≡ True
let example2 = assert : nonNegative -1 ≡ False
in nonNegative