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Theorem isarray-update

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

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 11
Proof steps: 33
Used lemmas: oktype-okval, okreftype, okarrayNotNull, update-at, update-in, is-any-array,
Used spec theorems:
- storearrays/is_arrayref
Used simplifier rules: