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Proof step 4 from proof rm-vl-in-before-h (previous step)

eq-entry(n, lref) ∈ eqent + q0 - lref, ∀ n, lref. ¬ eq-entry(n, lref) ∈ q0 - lref ⊦

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 5:
eq-entry(n, lref) ∈ (eqent.lebref = lref ⊃ q0 - eqent.lebref;eqent ' + (q0 - lref)), ∀ n, lref. ¬ eq-entry(n, lref) ∈ q0 - lref ⊦

Rule argument

Additional information

Used simplifier rules: queue-rm-vl-rec: ⊦ eqent ' + q - lref = (eqent.lebref = lref ⊃ q - lref;eqent ' + (q - lref));%a: ⊦ (q + q0) + q1 = q + q0 + q1; from specification list[erasequeue-base]% ⊦ eqent + q = eqent ' + q; (s)