| ⌜min(nσ, n)⌝ < # nσ, ⌜min(nσ, n + 1)⌝ < # nσ, n < nσ[min(nσ, n + 1)], min(nσ, n) < min(nσ, n + 1), min(nσ, n) + 1 < min(nσ, n + 1), mon<(nσ), n ≤ nσ[min(nσ, n)], ⌜min(nσ, n) + 1⌝ < # nσ ∧ n < nσ[min(nσ, n) + 1] → min(nσ, n + 1) ≤ min(nσ, n) + 1, ∀ m. ⌜m⌝ < # nσ ∧ n ≤ nσ[m] → min(nσ, n) ≤ m, ∀ m. ⌜m⌝ < # nσ ∧ n < nσ[m] → min(nσ, n + 1) ≤ m, # nσ = ∞ ∨ ¬ nσ[(# nσ).n - 1] < n, # nσ = ∞ ∨ n < nσ[(# nσ).n - 1] ⊦ min(nσ, n + 1) = min(nσ, n), min(nσ, n + 1) = 1 + min(nσ, n), nσ = [] |
min(nσ, n) + 1 < min(nσ, n + 1), min(nσ, n) < min(nσ, n + 1), n < nσ[min(nσ, n + 1)], ⌜min(nσ, n + 1)⌝ < # nσ, ⌜min(nσ, n)⌝ < # nσ, mon<(nσ), n ≤ nσ[min(nσ, n)], ∀ m. ⌜m⌝ < # nσ ∧ n < nσ[m] → min(nσ, n + 1) ≤ m, ∀ m. ⌜m⌝ < # nσ ∧ n ≤ nσ[m] → min(nσ, n) ≤ m, # nσ = ∞ ∨ n < nσ[(# nσ).n - 1], # nσ = ∞ ∨ ¬ nσ[(# nσ).n - 1] < n ⊦ min(nσ, n + 1) = 1 + min(nσ, n), min(nσ, n + 1) = min(nσ, n), nσ = [], ⌜min(nσ, n)⌝ + ⌜1⌝ < # nσ ∧ n < nσ[min(nσ, n) + 1]
Used simplifier rules: ⊦ m < n → (n ≤ m + 1 ↔ n = m + 1); (s)%c: ⊦ m + n = n + m; from specification nat-basic%a: ⊦ (m + n0) + n1 = m + n0 + n1; from specification nat-basic% ⊦ ⌜m + n⌝ = ⌜m⌝ + ⌜n⌝ ; (s)