def eb2n
import bend-collections-laws-math@1.0.0.0/proofs/math/typed/f64sqs.bend as F64sqsimport Base
import bend-collections-laws-math@1.0.0.0/spec/math/f64.bend as SF
34def eb2n(+c: Bool) -> {Nat.is_eq(SF.b2n(Bool.not(c)), 0n) == c : Bool}:
35 match c:
36 case True{}:
37 {==}
38 case False{}:
39 {==}