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Proof step 8 from proof refine-remap (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_map#(default-volid, m; avols; err)⟫ ⟨ebm_avol_remap#(m; avol; err0)⟩ (avol = abs(avols[default-volid]) ∧ err = err0)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information