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Proof step 5 from proof le-2pot-01 (previous step)

j0 < 2, 0 ≤ i, 0 ≤ j0, 0 ≤ i0 ⊦ i0 ≤ 2 ^ i ↔ i0 * 2 + j0 ≤ 2 ^ (i + 1) + 1

User applied rule case distinction

And obtained the following new goals

Proof step 6:
j0 < 2, 0 ≤ i0, 0 ≤ j0, 0 ≤ i, i0 ≤ 2 ^ i ⊦ i0 * 2 + j0 ≤ 2 ^ (i + 1) + 1
Proof step 12:
j0 < 2, 0 ≤ i0, 0 ≤ j0, 0 ≤ i, i0 * 2 + j0 ≤ 2 ^ (i + 1) + 1 ⊦ i0 ≤ 2 ^ i

Rule argument

pos: right 1

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