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Theorem isobj-isobj

⊦ ¬ is_obj(r, st) → ¬ is_obj(r, class, st)

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: isobj-addobj-02, isobj-del-03, isobj-put-04, isobj-put-index-02, isobj-put-statfield, isobj-update, validref-02,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 3
Proof steps: 6
Used lemmas: is_obj-def, isobj-typein, isobj-null-01, is-any-object,
Used spec theorems:
- Used simplifier rules:
  - javavalue/test-92
  - javatype/test-10
  - javatype/sel-02
  - javavalue/sel-11
  - store/javastore/In-store
  - storefuns/instore-01