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Proof step 12 from proof nextli-lemma (previous step)

lfgen(0)(0) = [], lfgen(n)(n) = lfgen(n + 1)(n), lfgen(n + 1)(0) = [], ∀ m, n1, n2. m ≤ n1 ∧ n1 ≤ n2 → lfgen(n1)(m) = lfgen(n2)(m), ∀ n. lfgen(n)(0) = [] ∧ (∀ m. m < n → lfgen(n)(m + 1) = nextli(lfgen(n)(m))), ∀ m. ¬ n < m → lfgen(n + 1)(m + 1) = nextli(lfgen(n + 1)(m)) ⊦ lfgen(n + 1)(n + 1) = nextli(lfgen(n)(n))

User applied rule all left

And closed the goal!

Rule argument

pos: left 6 terms: n abort: F discard: F computed: T

Additional information

Used simplifier rules: ref-1: ⊦ ¬ n < n; from specification nat-basic1 Used terms: n