When Alston met Brandom: Defining assertion

In this paper I give a definition of assertion that develops William P. Alston’s account. Alston’s account of assertion combines a responsibility condition R, which captures the appropriate socio-normative status that one undertakes in asserting something, with an explicit presentation condition, such that the speech act in some way presents the content of what is being asserted. I develop Alston’s account of explicit presentation and add a Brandomian responsibility condition. I then argue that this produces an attractive position on the nature of assertion.