| lf(0) = [], ∀ m. m < n0 → lf(m + 1) = nextli(lf(m)) ⊦ (m = n0 ⊃ nextli(lf(n0));lf(m + 1)) = nextli((m = n0 + 1 ⊃ nextli(lf(n0));lf(m))), n0 < m |
lf(0) = [], ∀ m. m < n0 → lf(m + 1) = nextli(lf(m)) ⊦ lf(m + 1) = nextli((m = n0 + 1 ⊃ nextli(lf(n0));lf(m))), m = n0, n0 < m
Used simplifier rules: ⊦ m = m + n ↔ n = 0; (s)%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic%c: ⊦ m + n = n + m; from specification nat-basic