| err0 = ESUCCESS, ebm-cons(avols), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ⟪avols[v] := fill(mkabstractvolume(n), erased)⟫ ebm-cons(avols), v ∈ avols |
err0 = ESUCCESS, ebm-cons(avols), ⌊err0⌋ ∨ err0 = ESUCCESS ⊦ ebm-cons(avols[v, fill(mkabstractvolume(n), erased)]), v ∈ avols