| avols = ∅, err = ESUCCESS, err = err0, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪avols[default-volid] := fill(mkabstractvolume(n), erased)⟫ (err = ESUCCESS → default-volid ∈ avols ∧ ebm-cons(avols)) |
avols = ∅, err = err0, err = ESUCCESS, ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ default-volid ∈ avols[default-volid, fill(mkabstractvolume(n), erased)] ∧ ebm-cons(avols[default-volid, fill(mkabstractvolume(n), erased)])