  Let us now turn to those who take reason to be prior to realism. People in this category take objectivity to be the hallmark of realism and they come to their conclusions concerning realism about a given domain only after one has a good understanding of what kind of theoretical reasons have traction in that domain. A pluralist who thinks that theoretical justification in mathematics must ultimately trace back to axioms which are self-evident will be unmoved by the above extrinsic case. Likewise for a pluralist who thinks that theoretical justification in mathematics must ultimately trace back to axioms that are extrinsically justified. The case we have given is clearly an extrinsic one. The issue, then, comes down to the legitimacy of extrinsic justifications. 