SULLIVAN, Arthur. Logical deviance and the constitutive a priori. []. , 15, 24, pp.67-85. ISSN 0124-6127.

What I will call 'the deviant logician objection' is one line of attack against the common and compelling tenet that our justification for logical truths is grounded in our understanding of their constituent concepts. This objection seeks to undermine the possibility of any deep constitutive connection, in the epistemology of logic (and also beyond), between understanding and justification. My thesis is that while the deviant logician objection falls short of proving that this traditional tenet must be rejected, nonetheless it serves to bolster some important refinements.

: A priori knowledge; epistemology of logic; Timothy Williamson.

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