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Theorem validref-01

⊦ ¬ is_array(r, st) → (is_valid_ref(r, st) ↔ is_obj(r, st))

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 1
Proof steps: 2
Used lemmas: is-valid-ref, validref-isobj,
Used spec theorems:
- Used simplifier rules: