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Proof step 508 from proof refine-rmdir (
previous step
)
⊦ str ∈ entries ∧ entries[str] ∈ dirs0 ∧ dirs1 ≡ dirs0[entries[str], ad] → (((abs(sdt, entries) * D))(dirs0) ↔ str ∈ sdt ∧ ((abs(sdt[str], entries[str]) * abs(sdt -- str, entries -- str) * D))(dirs0))
Lemma
abs-unfold-entry-p