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Theorem isarray-keyin

⊦ ¬ st[r -- sk] .refval -- i ' ∈ st ∧ 0 ≤ i ∧ i < st[r -- (sk ' + _length ')] .intval → ¬ is_array(st[r -- sk] .refval, st)

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

View the proof

Infos about the proof

Proved?: Yes
Interactions: 5
Proof steps: 18
Used lemmas: oktype-okval, okreftype, okarrayNotNull, okarray-05, is-any-array, isarray-null,
Used spec theorems:
- storearrays/is_arrayref
- storefuns/lookup-two
Used simplifier rules: