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Theorem validref-put-01

⊦ r ≠ r0 → (is_valid_ref(r0, st[r -- sk, val]) ↔ is_valid_ref(r0, st))

Type: A user defined theorem
Validity: The proof is valid.
Features: simp, localsimp,
Comment:
Used by: is_valid_ref-put-01, isvalidref-put-array-badindex,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 6
Proof steps: 10
Used lemmas: isobj-put-01, is-any-object, is-valid-ref,
Used spec theorems:
- okfuns/is-any-array
Used simplifier rules: