This paper is ambitious: it begins with mixing externalism in philosophy of mind with internalism in epistemology, and it ends with instructive insights from social and feminist thought. In the first stage, I argue that one can consistently combine two theses that appear, at first glance, incompatible: cognitive externalism—the thesis that one’s mental states/processing can extend past one’s biological boundaries—and mentalism in epistemology—i.e., that epistemic justification supervenes on one’s mental states. This yields the perhaps startling or strange view that the (...) loci of epistemic justification are both mental states and located externally to one’s skull and skin. This motivates the second stage: I aim to ease that strangeness by suggesting that most discussions of cognitive externalism and epistemology too often focus exclusively on extending epistemically reliable abilities, faculties, dispositions, etc. to artifacts in one’s environment. Instead, we should think of this combination as informed by feminist epistemologists’ insistence of our thinking’s irreducible and radical sociality. Epistemic communities shape and are shaped by our cognition—echoing the dynamic, interactive integration at the heart of cognitive externalism. Thus, just as I am part of an epistemic community, it is also a part of me. Thus, I think with others: not merely as an artifact but as constituent elements of my cognition itself; resulting in a robust socially extended internalism. (shrink)

The paper discusses Bernard Bolzano’s epistemological approach to believing and knowing with regard to the epistemic requirements of an axiomatic model of science. It relates Bolzano’s notions of believing, knowing and evaluation to notions of infallibility, immediacy and foundational truth. If axiomatic systems require their foundational truths to be infallibly known, this knowledge involves both evaluation of the infallibility of the asserted truth and evaluation of its being foundational. The twofold attempt to examine one’s assertions and to do so by (...) searching for the objective grounds of the truths asserted lies at the heart of Bolzano’s notion of knowledge. However, the explanatory task of searching for grounds requires methods that cannot warrant infallibility. Hence, its constitutive role in a conception of knowledge seems to imply the fallibility of such knowledge. I argue that the explanatory task contained in Bolzanian knowing involves a high degree of epistemic virtues, and that it is only through some salient virtue that the credit of infallibility can distinguish Bolzanian knowing from a high degree of Bolzanian believing. (shrink)

How a group G can know that p has been the subject of much investigation in social epistemology in recent years. This paper clarifies and defends a form of non-supervenient, non-summative group knowledge: G can know that p even if none of the members of G knows that p, and whether or not G knows that p does not locally supervene on the mental states of the members of G. Instead, we argue that what is central to G knowing that (...) p is whether G has an epistemic structure that is functioning appropriately in accord with the action-related purposes of the group, and this structure may include non-agential elements such as devices that retain or process information. We argue that recent objections to non-summative group knowledge given by Jennifer Lackey do not in fact succeed in undermining the view, but do help to clarify the nature of non-summative group knowledge. The main upshot of our response to Lackey’s objections is that groups put their knowledge into action in ways that often differ from how individuals do so, and social epistemologists should be careful to notice these differences, especially insofar as groups often structure themselves by employing various epistemically-relevant devices. (shrink)