 Or, consider this example from David Owens (2006: 120): Suppose that you are justified in believing that some math theorem, T, is true because you just proved it yourself on the basis of some impeccable a priori reasoning. If you testify to me that T is true such that I come to acquire testimonial justification for believing that this is the case, then according to the Inheritance View, my belief is also based on your impeccable a priori  reasoning.[10]