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Proof step 8 from proof pot2-le-pred (previous step)

2 ^ i < 1 / 2 ^ abs(i - 1), i ≤ 0 ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 9:
⊦ 1 < j → 1 / j = 0
Proof step 10:
2 ^ i < 1 / 2 ^ abs(i - 1), i ≤ 0 ⊦ 1 < 2 ^ abs(i - 1)

Rule argument

spec: int-div name: one-04 seq: ⊦ 1 < j → 1 / j = 0 subst: [j] → [2 ^ abs(i - 1)] flags: <all paths>

Additional information

Used simplifier rules: two-lsz: ⊦ ¬ 2 ^ i < 0; Used terms: 2 ^ abs(i - 1)