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Proof step 3 from proof two-le (previous step)

0 ≤ i ⊦ 2 ^ i ≤ 2 ^ j ↔ i ≤ j

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: <toplevel> name: le-pos seq: ⊦ 1 < i ∧ 0 ≤ j → (i ^ j ≤ i ^ j0 ↔ j ≤ j0) subst: [j0, j, i] → [j, i, 2] flags: <all paths>

Additional information

Used terms: j, i, 2