| lfgen(0)(0) = nextl(0, a), n1 ≤ n0, lfgen(n0)(0) = nextl(0, a) ∧ (∀ m. m < n0 → lfgen(n0)(m + 1) = nextl(m + 1, lfgen(n0)(m).last)), ∀ n. lfgen(n)(0) = nextl(0, a) ∧ (∀ m. m < n → lfgen(n)(m + 1) = nextl(m + 1, lfgen(n)(m).last)) ⊦ lfgen(n1)(0) = lfgen(n0)(0) |
lfgen(0)(0) = nextl(0, a), lfgen(n0)(0) = nextl(0, a), n1 ≤ n0, ∀ m. m < n0 → lfgen(n0)(m + 1) = nextl(m + 1, lfgen(n0)(m).last), ∀ n. lfgen(n)(0) = nextl(0, a) ∧ (∀ m. m < n → lfgen(n)(m + 1) = nextl(m + 1, lfgen(n)(m).last)) ⊦ lfgen(n1)(0) = nextl(0, a)