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Theorem union-diff-distr

h1 ⊥ h2 ⊦ (h1 ∪ h2) \ h = (h1 \ h) ∪ (h2 \ h)

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: union-diff1, union-diff2,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 14
Proof steps: 26
Used lemmas: disj-r, disj-l, disj-diffb, at-uni, in-uni, diff-at, diff-in,
Used spec theorems:
- heap/ext
Used simplifier rules: