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Theorem map-del

⊦ ((r => o * hP))(h) ↔ hP(h -- r) ∧ r ∈ h ∧ h[r] = o

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: map-putex,
Used by units in proved state: heap-fun, linked-list, separation, heap-aux,
Proof exists?: Yes

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Infos about the proof