FELDMAN, Vice Chief Justice.
This petition for review asks us to determine whether there are genuine issues of material fact precluding summary judgment on insurance questions of duty to defend, breach of a cooperation clause and substantial prejudice to an insurer. We granted review to clarify several matters of statewide importance. Rule 23, Ariz.R.Civ.App.P., 17A A.R.S. We have jurisdiction under Ariz. Const. art. 6, § 5(3) and A.R.S. § 12-120.24.
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