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Proof step 48 from proof prepost-wl-free-max-below (previous step)

¬ boolvar ↔ below(free-ecs(wlar, # wlar), n) = ∅, wlar[vtblpnum] = wl-entry(m, stat), wlar[m0] = wl-entry(m1, free), m0 < # wlar, m1 < n, boolvar → vtblpnum < # wlar ∧ stat = free ∧ m = below(free-ecs(wlar, # wlar), n).max ⊦ vtblpnum < # wlar ∧ stat = free ∧ m = below(free-ecs(wlar, # wlar), n).max

User applied rule case distinction

And obtained the following new goals

Rule argument

pos: left 6

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