| afs-cons(dirs, files), m ∈ files ⊦ ⟨choose err0 with ⌊err0⌋ ∨ err0 = ESUCCESS in err := err0; choose bv with true in asynced := bv⟩ asynced |
afs-cons(dirs, files), m ∈ files ⊦ ∃ err0. (⌊err0⌋ ∨ err0 = ESUCCESS) ∧ ⟨err := err0; choose bv with true in asynced := bv⟩ asynced