Nat.add_right_comm: law of bend-mathlib@0.8.1.0
Import: import bend-mathlib@0.8.1.0/nat.bend as Nat
Lines 103-108 of bend-mathlib@0.8.1.0/nat.bend: https://jend.leeeet.dev/read.txt?path=bend-mathlib@0.8.1.0/nat.bend&start_line=103&end_line=108

import Base

# Right commutativity of addition: (a + b) + c = (a + c) + b.
law add_right_comm:
  for a: Nat
  for b: Nat
  for c: Nat
  {Nat.add(Nat.add(a, b), c) == Nat.add(Nat.add(a, c), b) : Nat}

Uses (3):
  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=bend-mathlib@0.8.1.0/nat.bend&name=add_comm