def b2n63
import bend-collections-laws-math@1.0.0.0/proofs/math/typed/f64rint.bend as F64rintimport Base
import bend-collections-laws-math@1.0.0.0/spec/lib/common.bend as C
import bend-collections-laws-math@1.0.0.0/spec/math/f64.bend as SF
69def b2n63(+b: Bool) -> {C.fits(63n, SF.b2n(b)) == True{} : Bool}:
70 match b:
71 case True{}:
72 {==}
73 case False{}:
74 {==}