For 10 points, name this rule that disallows the introduction of any outside information adding or contradicting the terms of a written contract
The Arizona doctrine of this rule was set forth in Taylor v. State Farm. Some courts consider the distinction between patent and latent ambiguity to be important to the application of this rule, exceptions to which include explanatory information, fraud, and duress. The traditional form of this rule disallows information outside the "four corners" of the document. For 10 points, name this rule that disallows the introduction of any outside information adding or contradicting the terms of a written contract
The Arizona doctrine of this rule was set forth in Taylor v. State Farm.
parol evidence rule [or PER]