law mod_mod_sym

bend-mathlib@0.8.1.0 · nat.bend:4399

import Base

4399# Taking a remainder twice is taking it once: (a % n) % n = a % n, reversed to rewrite toward the simple side.
4400law mod_mod_sym:
4401  for a: Nat
4402  for n: Nat
4403  {Nat.mod(a, n) == Nat.mod(Nat.mod(a, n), n) : Nat}