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Proof step 4 from proof abs-files-trunc (previous step)

inodekey(ino) ∈ ri ⊦ ¬ fs[ri[inodekey(ino)]].directory ↔ ¬ fs[adr, truncnode(key, n)][ri[inodekey(ino)]].directory, adr ∈ ri

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

Additional information