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Proof step 2 from proof to-plus-from-simp (previous step)

⊦ (σ to n) + (σ from n) = σ, # σ < ⌜n⌝

User applied rule insert elim lemma

And obtained the following new goals

Rule argument

spec: stream inst: name: elim-fromto seq: ⊦ ¬ # σ < ⌜n⌝ → (σ0 = σ to n ∧ σ1 = σ from n ↔ σ = σ0 + σ1 ∧ # σ0 = ⌜n⌝ ) subst: [σ, n, σ0, σ1] → [σ, n, σ0, σ1] flags: rewrite, current

Additional information

Used terms: σ, n, σ0, σ1