def Abs.value
import bend-collections-laws-math@1.0.0.0/spec/math/f64.bend as F64import Base
import bend-collections-laws-math@1.0.0.0/src/math/f64.bend as F
298def Abs.value(+x: F.F64) -> Type:
299 {F.abs(x) == encode(False{}, efield(x), frac(x)) : F.F64}