| v ∈ avols, vtblpnum < # avols[v], abs(avols, apebs, vols, q), ebm-cons(avols), ubi-cons(apebs, vols, wlar, q, bflipset, vtblpnum0, sqnum), vtblpnum1 = LEB_SIZE, vtblpnum2 = EB_PAGE_SIZE, ubi-io-inv(apebs) ⊦ ⟪ubi_erase#(v, vtblpnum, vtblpnum0, sqnum; vols, wlar, q, bflipset, apebs; err)⟫ ⟨ebm_erase#(v, vtblpnum; avols; err0)⟩ (abs(avols, apebs, vols, q) ∧ err = err0) |