law nat_add_left_comm_sym

bend-mathlib@0.8.1.0 · algebra.bend:364

import Base
import bend-mathlib@0.8.1.0/nat.bend as MNat

364# Nat addition is left-commutative (the same statement as MNat.add_left_comm), reversed to rewrite toward the simple side.
365law nat_add_left_comm_sym:
366  for +a: Nat
367  for +b: Nat
368  for +c: Nat
369  {Nat.add(b, Nat.add(a, c)) == Nat.add(a, Nat.add(b, c)) : Nat}