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Proof step 20 from proof lst-02 (previous step)

1 < i +1 ⊦ i = 0, i = ~1, i < 0, 0 < i

User applied rule insert rewrite lemma

And obtained the following new goals

Rule argument

spec: inst: name: one-less seq: ⊦ 1 < i ↔ 0 < i -1 subst: [i] → [i +1] flags: rewrite, current

Additional information

Used simplifier rules: succpred: ⊦ i +1 -1 = i; Used terms: i +1