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Proof step 6 from proof to-unwind-end-fin (previous step)

m0 < # x0, ∀ x0, a. m0 ≤ # x0 ∧ (∀ m. m < # x0 → x0 to m + 1 = (x0 to m) + x0[m] ' ∨ x0 = []) → a ' + (x0 to m0) = (a ' + x0 to m0) + (a ' + x0)[m0] ', ∀ m. m < # x0 → x0 to m + 1 = (x0 to m) + x0[m] ' ⊦ x0 to m0 + 1 = (x0 to m0) + x0[m0] ', x0 = []

Heuristic quantifier closing applied rule all left

And closed the goal!

Rule argument

pos: left 3 terms: m0

Additional information

Used terms: m0