Class.Group.sub_add: def of bend-lawful-stdlib@0.1.0.0
Import: import bend-lawful-stdlib@0.1.0.0/src/class.bend as Class
Lines 62-65 of bend-lawful-stdlib@0.1.0.0/src/class.bend: https://jend.leeeet.dev/read.txt?path=bend-lawful-stdlib@0.1.0.0/src/class.bend&start_line=62&end_line=65

import Base

def Group.sub_add(-A: Data, d: Group<A>, a: A, b: A) -> {a == Group.sub(A, d, Group.add(A, d, a, b), b) : A}:
  match d:
    case Group{add, sub, sub_add, add_sub}:
      sub_add(a, b)

Uses (3):
  https://jend.leeeet.dev/definition.txt?path=bend-lawful-stdlib@0.1.0.0/src/class.bend&name=Group
  https://jend.leeeet.dev/definition.txt?path=bend-lawful-stdlib@0.1.0.0/src/class.bend&name=Group.add
  https://jend.leeeet.dev/definition.txt?path=bend-lawful-stdlib@0.1.0.0/src/class.bend&name=Group.sub