Definition of "apriori"

Another form of this kind of scepticism is as follows. Logic is apriori, but inductive "logic" is not, so it is not really logic.

2001, Mark Sainsbury, chapter 1, in Logical Forms — An Introduction to Philosophical Logic, Second Edition, Blackwell Publishing, page 13

In other words, one can be fallibilist about both claims that are said to be apriori warranted and the a priori warrants for the claims.

2008 January 30, Lisa Warenski, “Naturalism, fallibilism, and the a priori”, in Philosophical Studies, volume 142, number 3