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Proof step 2 from proof alignup-isnot-smaller (previous step)

⊦ align↑(n, m) < n ↔ false, m = 0

User applied rule apply lemma

And obtained the following new goals

Proof step 3:
m ≠ 0 ⊦ n0 ≤ align↑(n0, m)
Proof step 4:
0 ≠ m ⊦ align↑(n, m) = (n % m = 0 ⊃ n;(n / m)+1 * m)

Rule argument

spec: <toplevel> name: alignup-is-bigger seq: m ≠ 0 ⊦ n0 ≤ align↑(n0, m) subst: [m, n0] → [m, n]

Additional information

Used simplifier rules: alignup-def: 0 ≠ m ⊦ align↑(n, m) = (n % m = 0 ⊃ n;(n / m)+1 * m);% ⊦ m +1 = m + 1; (s)% ⊦ m * (n + 1) = m * n + m; (s)%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic%c: ⊦ m + n = n + m; from specification nat-basic%mult-a: ⊦ m0 * m * n = (m0 * m) * n; from specification nat-mult%mult-c: ⊦ m * n = n * m; from specification nat-mult% ⊦ m < n → (n ≤ m ↔ false); (s) Used terms: m, n