Interpersonal reasoning: A philosophical psychology of testimonial trust

Anscombe famously said, “It is an insult and it may be aninjury not to be believed.” But what is it to believe some-one? My aim is to show that understanding what it is tobelieve someone requires a conception of a distinctive kindof interpersonal reasoning. To do so, I develop an analogybetween interpersonal reasoning and an Anscombean con-ception of practical reasoning. I suggest that the distinctive‘form’ of interpersonal reasoning is recognition. I further-more argue that this is to be understood as a primarily logi-cal, rather than epistemological point. In concluding, Iexplain why a notion of interpersonal reasoning makesavailable an ethics of thought and, specifically, an accountof testimonial injustice.