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Proof step 7 from proof inv-link (previous step)

err = ESUCCESS, err0 = err1, root.dir?, fids-cons(root, fs, ofh), pre-link(path, path', err, user, root, fs, ofh) ⊦ ⟪let fid = root[path].fid in root[path'] := fnode(fid); psynced := ?⟫ (root.dir? ∧ fids-cons(root, fs, ofh))

Heuristic symbolic execution applied rule let right

And obtained the following new goals

Proof step 8:
err = ESUCCESS, err0 = err1, fid = root[path].fid, root.dir?, fids-cons(root, fs, ofh), pre-link(path, path', err, user, root, fs, ofh) ⊦ ⟪root[path'] := fnode(fid); psynced := ?⟫ (root.dir? ∧ fids-cons(root, fs, ofh))

Proof step 7 from proof inv-link (previous step)

Heuristic symbolic execution applied rule let right

And obtained the following new goals

Rule argument

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