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Proof step 6 from proof size-inf-to (previous step)

∀ nf. #(nf to n0) = n0 ⊦ #((λ n. nf(n + 1)) to n0) = n0

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

pos: left 1 terms: λ n. nf(n + 1)

Additional information

Used terms: λ n. nf(n + 1)