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Proof step 14 from proof inv-unlink (previous step)

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

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Proof step 15:
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 -- fid, ofh), fid ∈ ofh.fids, fid ∈ root0.fids \ {fid}

Proof step 14 from proof inv-unlink (previous step)

Heuristic symbolic execution applied rule assign right

And obtained the following new goals

Rule argument

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