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Proof step 2 from proof notneg-02 (previous step)

i ^ j < i, 0 < i, i ^ j < 0, i ^ j + 1 < i ⊦

User applied rule insert lemma

And obtained the following new goals

Proof step 3:
⊦ 0 ≤ i ∧ 0 ≤ j → ¬ i ^ j < 0
Proof step 4:
0 ≤ i ∧ 0 ≤ j → ¬ i ^ j < 0, i ^ j < i, 0 < i, i ^ j < 0, i ^ j + 1 < i ⊦

Rule argument

spec: int-pot inst: name: notneg seq: ⊦ 0 ≤ i ∧ 0 ≤ j → ¬ i ^ j < 0 subst: [i, j] → [i, j] flags: current, []

Additional information

Used terms: i, j