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Proof step 13 from proof max-perm (previous step)

i ∈ ints0, perm(ints1, ints0 -1l i), ∀ ints0. perm(ints1, ints0) → max(ints1) = max(ints0) ⊦ ints1 = [], max(i, max(ints1)) = max(ints0)

User applied rule all left

And obtained the following new goals

Proof step 14:
i ∈ ints0, perm(ints1, ints0 -1l i), perm(ints1, ints0 -1l i) → max(ints1) = max(ints0 -1l i) ⊦ ints1 = [], max(i, max(ints1)) = max(ints0)

Rule argument

pos: left 3 terms: ints0 -1l i abort: F discard: T computed: T

Additional information

Used terms: ints0 -1l i