According to Stone's reconstruction, Hegel makes four sorts of argument in favor of a metaphysical, strong a priori
approach to nature--the first two largely untenable and the last two more promising but also ultimately flawed.
The appeal to (allegedly) a priori
knowledge is central to Cassam's accounts of the possibility of perceptual knowledge and of knowledge of other minds.
Infallibilism about a priori
justification is the thesis that for an agent A to be a priori
justified in believing p, that which justifies A's belief that p must guarantee the truth of p.
BonJour's rationalism is that of a realist: a priori
knowledge is rational insight into necessary features of reality.
The introduction criticizes the Kantian a priori
which confers meaning on experience while remaining 'independent of experience and.