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Proof step 8 from proof prime-13 (previous step)

13 % i = 0, i * i ≤ 13, 0 < i, 1 < i, i < 4 ⊦

User applied rule insert rewrite lemma

And obtained the following new goals

Proof step 9:
⊦ i ≠ j -1 → (i < j ↔ i < j -1)
Proof step 10:
i ≠ 4 -1, 13 % i = 0, i * i ≤ 13, 0 < i, 1 < i, i < 4 -1 ⊦

Rule argument

spec: int-basic1 inst: name: ls-rec seq: ⊦ i ≠ j -1 → (i < j ↔ i < j -1) subst: [j, i] → [4, i] flags: rewrite

Additional information

Used terms: 4, i