Full Idea
Quine's arguments provide no reason to doubt the existence of a priori knowledge outside the domain of science.
Gist of Idea
Quine's objections to a priori knowledge only work in the domain of science
Source
comment on Willard Quine (Two Dogmas of Empiricism [1953]) by Paul Horwich - Stipulation, Meaning and Apriority §10
Book Reference
'New Essays on the A Priori', ed/tr. Boghossian,P /Peacocke,C [OUP 2000], p.166
A Reaction
This rather ignores Quine's background view of thoroughgoing physicalism, so that the domain of science is the domain of nature, which is the domain of everything. See his naturalising of epistemology, for example. Maths is part of his science.