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Proof step 6 from proof pot-square-est-div6 (previous step)

0 ≤ 2 ∧ 0 ≤ 2 ∧ 0 ≤ i / 6, 2 ^ (2 * i / 6) ≤ (i + 1) * (i + 1), 36 ≤ i, 0 ≤ i, 0 < i ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 7:
⊦ i * j = j * i
Proof step 8:
0 ≤ 2 ∧ 0 ≤ 2 ∧ 0 ≤ i / 6, 2 ^ (i / 6 * 2) ≤ (i + 1) * (i + 1), 36 ≤ i, 0 ≤ i, 0 < i ⊦

Rule argument

spec: int-mult inst: name: commutativity seq: ⊦ i * j = j * i subst: [j, i] → [i / 6, 2] flags: rewrite

Additional information

Used terms: i / 6, 2