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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: diff-size, rm-size,
Used by units in proved state: heap-fun, maplet, heap-mod,
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: