| root0[path] = fnode(fid), root0.dir?, fids-cons(root0, fs, ofh), py(user, parent(path), root0, fs), path ∈ root0 ⊦ ⟪psynced := ?⟫ fids-cons(root0 -- path, fs, ofh), path = ε, ¬ fid ∈ ofh.fids ∧ ¬ fid ∈ root0.fids \ {fid} , fid ∈ root0.fids ∧ ¬ fid ∈ {fid} |
root0[path] = fnode(fid), root0.dir?, fids-cons(root0, fs, ofh), py(user, parent(path), root0, fs), path ∈ root0 ⊦ path = ε, fids-cons(root0 -- path, fs, ofh), fid ∈ root0.fids ∧ ¬ fid ∈ {fid} , ¬ fid ∈ ofh.fids ∧ ¬ fid ∈ root0.fids \ {fid}