| # σ = # σ0, # σ2 + # σ3 = # σ1, σ0 to n = (σ to n) + σ1 to n, ⌜n0⌝ < # σσ, ⌜n1⌝ < # σσ, n1 < n0, mon(σσ), ∀ n. ⌜n⌝ < # σσ → (∃ σ1. σσ[n] + σ1 = σ), ∀ n. ⌜n⌝ < # σσ → (∃ σ1. σσ[n] + σ1 = σ0) ⊦ n0 = 0, σ to n = σ0 to n, σσ = [], # σ0 < ⌜n⌝ |
⊦ ¬ # σ < ⌜n⌝ → σ + σ0 to n = σ to n
Used simplifier rules: ¬ # σ < ⌜n⌝ ⊦ σ to n to n = σ to n; (s)%¬ # σ < ⌜n⌝ ⊦ #(σ to n) = ⌜n⌝ ; (s)% ⊦ ⌜m⌝ < ⌜n⌝ ↔ m < n; (s)% ⊦ ¬ n < n; (s) Used terms: n, σ1, σ to n