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Proof step 9 from proof rm-vl-notin-before (previous step)

eq-entry(n, lref) ∈ q0 - lref0, ∀ n, lref, lref0. eq-entry(n, lref) ∈ q0 - lref0 → (∃ n. eq-entry(n, lref) ∈ q0) ⊦ ∃ n0. eq-entry(n0, lref) = eq-entry(m, lref0) ∨ eq-entry(n0, lref) ∈ q0

Heuristic quantifier applied rule all left

And obtained the following new goals

Rule argument

pos: left 2 terms: n, lref, lref0

Additional information

Used terms: n, lref, lref0