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Theorem is_valid_ref-update

⊦ r ≠ r0 → (is_valid_ref(str, r, update(r0, fis, st)) ↔ is_valid_ref(str, r, st))

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: 1
Proof steps: 3
Used lemmas: isobj-update, is-valid-ref, is-valid-ref-stronger-def, is-real-object-def, is_valid_ref-def,
Used spec theorems:
- Used simplifier rules: