law nat_mul_left_comm
import bend-mathlib@0.8.1.0/algebra.bend as Algebraimport Base
import bend-mathlib@0.8.1.0/nat.bend as MNat
152# Nat multiplication is left-commutative (the same statement as MNat.mul_left_comm).
153law nat_mul_left_comm:
154 for +a: Nat
155 for +b: Nat
156 for +c: Nat
157 {Nat.mul(a, Nat.mul(b, c)) == Nat.mul(b, Nat.mul(a, c)) : Nat}