Field.msub: def of bend-collections-laws-crypto@1.0.0.0
Import: import bend-collections-laws-crypto@1.0.0.0/spec/crypto/secp256k1/field.bend as Field
Lines 49-51 of bend-collections-laws-crypto@1.0.0.0/spec/crypto/secp256k1/field.bend: https://jend.leeeet.dev/read.txt?path=bend-collections-laws-crypto@1.0.0.0/spec/crypto/secp256k1/field.bend&start_line=49&end_line=51

import Base

# a - b mod m
def msub(+m: Nat, a: Nat, b: Nat) -> Nat:
  Nat.mod(Nat.sub(Nat.add(a, m), Nat.mod(b, m)), m)

Uses (4):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.add
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.mod
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Nat.sub