| psynced0 ↔ psynced1, m = LEB_SIZE ⊦ ⟪choose err with ⌊err⌋ in err0 := err⟫ (err0 = ESUCCESS → psynced ∧ root.dir? ∧ fids-cons(root, fs, ofh)) |
psynced0 ↔ psynced1, m = LEB_SIZE, ⌊err⌋ ⊦ ⟪err0 := err⟫ (err0 = ESUCCESS → psynced ∧ root.dir? ∧ fids-cons(root, fs, ofh))
psynced0 ↔ psynced1, m = LEB_SIZE ⊦ ∃ err. ⌊err⌋