Online research in philosophy

I argue that you can have a priori knowledge of propositions that neither are nor appear necessarily true. You can know a priori contingent propositions that you recognize as such. This overturns a standard view in contemporary epistemology and the traditional view of the a priori, which restrict a priori knowledge to necessary truths, or at least to truths that appear necessary.

Most current theories of meaning and mental content accept externalism. One of its forceful exponents is Ruth Garrett Millikan. She argues that externalism leads to the abandonment of "the last myth of the given", that is, of the idea that identity of meaning and mental content is somehow unproblematically given to us, and that we can easily recognize the sameness of meaning and mental content. If one refuses such a "mythical" giveness or meaning rationalism, one has to admit that there is no logical possibility known a priori . The paper tries to show that even if one abandons meaning rationalism one can still hold that there are logical possibilities known a priori . The claim is defended by arguing that a priori knowledge is not completely independent from experience and does not demand the absolute transparency of meaning from the first-person point of view. A priori knowledge requires only a priori justification, that is, such a justification that is based merely on relations between meanings or contents.

There are four approaches to analyzing the concept of a priori knowledge. The primary target of the reductive approach is the concept of a priori justification. The primary target of the nonreductive approach is the concept of a priori knowledge. There are two approaches to analyzing each primary target. A theory-neutral approach provides an analysis that does not presuppose any general theory of knowledge or justification. A theory-laden approach provides an analysis that does presuppose some general theory of knowledge or justification (call it the background theory ). Those who embrace a theory-laden analysis incur a special burden: they must separate the features of their analysis that are constitutive of the a priori from those that are constitutive of the background theory. My goal is to illustrate how the failure to separate these features leads to erroneous conclusions about the nature of a priori knowledge.

Some recent discussions of a priori knowledge, taking their departure from Kant's characterization of such knowledge as being absolutely independent of experience, have concluded that while one might delineate a concept of a priori knowledge, it fails to have any application as any purported case of such knowledge can be undermined by suitably recalcitrant experiences. In response, certain defenders of apriority have claimed that a priori justification only requires that a belief be positively dependent on no experience. In this paper, I begin by showing how the exchange of arguments between the disputants comes down, in the end, to no more than a display of conflicting intuitions. I shall then provide a diagnosis explaining how our explication of a priori justification depends on our standards for applying the term 'a priori' with this, in turn, reflecting our prior intentions as to whether we are willing to allow the existence of such warrants. I shall further argue that the claim that such knowledge can be affected by subversive experience is not entirely compatible with the spirit of apriority. Finally I conclude by making some methodological remarks about the prospects of a positive characterization of a priori knowledge by comparing it to the concept of knowledge.

Kant''s claim that the justification of transcendental philosophy is a priori is puzzling because it should be consistent with (1) his general restriction on the justification of knowledge, that intuitions must play a role in the justification of all nondegenerate knowledge, with (2) the implausibility of a priori intuitions being the only ones on which transcendental philosophy is founded, and with (3) his professed view that transcendental philosophy is not analytic. I argue that this puzzle can be solved, that according to Kant transcendental philosophy is justified a priori in the sense that the only empirical information required for its justification can be derived from any possible human experience. Transcendental justification does not rely on any more particular or special observations or experiments. Philip Kitcher''s general account of apriority in Kant captures this aspect of a priori knowledge. Nevertheless, I argue that Kitcher''s account goes wrong in the link it specifies between apriority and certainty.

The distinction between a priori and a posteriori knowledge has been the subject of an enormous amount of discussion, but the literature is biased against recognizing the intimate relationship between these forms of knowledge. For instance, it seems to be almost impossible to find a sample of pure a priori or a posteriori knowledge. In this paper, it will be suggested that distinguishing between a priori and a posteriori is more problematic than is often suggested, and that a priori and a posteriori resources are in fact used in parallel. We will define this relationship between a priori and a posteriori knowledge as the bootstrapping relationship. As we will see, this relationship gives us reasons to seek for an altogether novel definition of a priori and a posteriori knowledge. Specifically, we will have to analyse the relationship between a priori knowledge and a priori reasoning , and it will be suggested that the latter serves as a more promising starting point for the analysis of aprioricity. We will also analyse a number of examples from the natural sciences and consider the role of a priori reasoning in these examples. The focus of this paper is the analysis of the concepts of a priori and a posteriori knowledge rather than the epistemic domain of a posteriori and a priori justification.

The major divide in contemporary epistemology is between those who embrace and those who reject a priori knowledge. Albert Casullo provides a systematic treatment of the primary epistemological issues associated with the controversy. By freeing the a priori from traditional assumptions about the nature of knowledge and justification, he offers a novel approach to resolving these issues which assigns a prominent role to empirical evidence. He concludes by arguing that traditional approaches to the a priori, which focus primarily on the concepts of necessity and analyticity, are misguided.

The book sets out to analyse the notion of a priori justification and of a priori knowledge.