def f_mul_b
import bend-collections-laws-crypto@1.0.0.0/proofs/crypto/secp256k1/fprot.bend as Fprotimport Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/secp256k1/field.bend as F
35def f_mul_b(+a: List<&2, Nat>, b: List<&2, Nat>) -> {F.mul_b(a, b) == F.mul_u(a, b) : List<&2, Nat>}:
36 match b:
37 case Nil{}:
38 {==}
39 case y <> u:
40 {==}