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Proof step 34 from proof nextl-lemma (previous step)

⊦ ∃ lf. lf(0) = nextl(0, a) ∧ (∀ m. m < n → lf(m + 1) = nextl(m + 1, lf(m).last))

User applied rule structural induction

And obtained the following new goals

Proof step 35:
⊦ ∃ lf. lf(0) = nextl(0, a) ∧ (∀ m. m < 0 → lf(m + 1) = nextl(m + 1, lf(m).last))
Proof step 37:
∀ nextl, a. ∃ lf. lf(0) = nextl(0, a) ∧ (∀ m. m < n0 → lf(m + 1) = nextl(m + 1, lf(m).last)) ⊦ ∃ lf. lf(0) = nextl(0, a) ∧ (∀ m. m < n0 +1 → lf(m + 1) = nextl(m + 1, lf(m).last))

Rule argument

indvar: n

Additional information

Used simplifier rules: nat freely generated by 0, +1;;