⊦ is-aligned(n, m) ↔ n % m = 0
m0 % m1 = 0 ⊦ (n % m0) % m1 = 0 ↔ n % m1 = 0, m0 = 0, m1 = 0
Used simplifier rules: is-aligned-def: ⊦ is-aligned(n, m) ↔ n % m = 0;