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Proof step 1 from proof get-fintoinf (conclusion)

¬ ⌜# x⌝ < n∞, ⌜m⌝ < n∞ ⊦ (⌜x⌝ to∞ n∞)[m] = x[m]

Heuristic simplifier applied rule simplifier

And closed the goal!

Rule argument

Additional information

Used simplifier rules: size-fin: ⊦ # ⌜x⌝ = ⌜# x⌝ ;%get-toinf: ⌜m⌝ < n∞, ¬ # σ < n∞ ⊦ (σ to∞ n∞)[m] = σ[m];%sel-fin: ⊦ ⌜x⌝ [n] = x[n];