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Proof step 2 from proof notone (previous step)

1 < i, 0 < j, i ^ j ≤ 1 ⊦

User applied rule induction

And obtained the following new goals

Proof step 3:
1 < i, 0 < j, i ^ j ≤ 1, ∀ j0, i. i→n(j0) < i→n(j) → 1 < i ∧ 0 < j0 ∧ i ^ j0 ≤ 1 → false ⊦

Rule argument

indvar: i→n(j) wfpred: <

Additional information

Used simplifier rules: <; (wellfounded) Used terms: i→n(j)