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Proof step 8 from proof app (previous step)

unique_al(ax0 + p0 ' + ay), ∀ p, ay. unique_al(ax0 + p ' + ay) → unique_al(ax0 + ay) ⊦ ¬ a ∈ ax0 + ay ∧ unique_al(ax0 + ay), a ∈ ax0 + p0 ' + ay

User applied rule all left

And obtained the following new goals

Rule argument

pos: left 2 terms: p0, ay abort: F discard: T computed: T

Additional information

Used terms: p0, ay