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Theorem isobj-union

⊦ ¬ r ∈ st .refs → (is_obj(r, class, sks, st ∪ st0) ↔ is_obj(r, class, sks, st0))

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 2
Proof steps: 4
Used lemmas: isobj-all,
Used spec theorems:
- Used simplifier rules:
  - okfuns/gft-union
  - storefunsx/union-at-right-03
  - storefunsx/union-in-02
  - store/javastore/In-store