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Theorem eq-union-disj

⊦ zh0 ⊥ zh ∧ zh1 ⊥ zh → (zh0 ∪ zh = zh1 ∪ zh ↔ zh0 = zh1)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 4
Proof steps: 8
Used lemmas:
Used spec theorems:
- heap/zheap/ext
Used simplifier rules:
- heap/zheap/disj-l
- heap/zheap/in-uni
- heap/zheap/at-uni
- heap/zheap/disj-r