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Proof step 1 from proof two-eq (conclusion)

⊦ 2 * i = 2 * j ↔ i = j

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: int-mult inst: name: eq-nonzero seq: ⊦ i ≠ 0 → (i * j = i * j0 ↔ j = j0) subst: [j0, j, i] → [j, i, 2] flags: rewrite, current

Additional information

Used terms: j, i, 2