def s_neg
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/scalar.bend as S
116def s_neg(a: List<&2, Nat>) -> {S.neg(a) == S.neg_u(a) : List<&2, Nat>}:
117 {==}