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Theorem del-new

¬ r ∈ H, r ≠ null ⊦ (H ++ r) -- r = H

Type: A user defined theorem
Validity: The proof is valid.
Features: ls, s,
Comment:
Used by:
Used by units in proved state: maplet, heap-fun,
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 7
Used lemmas: at-alloc, at-del, in-alloc, in-del, ext,
Used spec theorems:
- Used simplifier rules: