ABSTRACT

The idea that there is pragmatic encroachment on knowledge has been vigorously explored in recent literature, but what has been rather less explored is how pragmatic encroachment interacts with another important principle about the structure of knowledge, namely, epistemic closure. In this chapter, we plan to go some way toward remedying that. For the purposes of this chapter, we will focus on single-premise closure, which we will understand as the idea that a proposition competently deduced from something one knows (and believed on that basis) is also known. 1