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Proof step 5 from proof refine-unmap (previous step)

avol = abs(avols[default-volid]), v = default-volid, m < # avols[default-volid], ebm-cons(avols), ebm-vol-inv(abs(avols[default-volid])), default-volid ∈ avols ⊦ ⟪ebm_unmap#(v, m; avols)⟫ ⟨ebm_avol_unmap#(m; avol)⟩ (avol = abs(avols[default-volid]))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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