def Copysign.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
301def Copysign.value(+x: F.F64, +y: F.F64) -> Type:
302 {F.copysign(x, y) == encode(sign(y), efield(x), frac(x)) : F.F64}