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Theorem dom-ins

⊦ dom st[a, d] = dom st ++ a

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: restrict-intersect-empty-write-add,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 1
Used lemmas: Dom,
Used spec theorems:
- set-basic/Extension
Used simplifier rules: