Juan Comesaña

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Ernest Sosa has argued that if someone knows that p, then his belief that p is “safe,” and Timothy Williamson has agreed. In this paper I argue that safety, as defined by Sosa, is not a necessary condition on knowledge—that we can have unsafe knowledge. In the next section I present Sosa’s definition of safety, and in section III I present a counterexample(More)
Aristotle’s discussion of perceiving that we perceive (On the Soul .) has points of contact with two contemporary debates about consciousness: the first over whether consciousness is an intrinsic feature of mental states or a higher-order thought or perception; the second concerning the qualitative nature of experience. In both cases, Aristotle’s views(More)
Exotic ontologies are all the rage. Distant from common sense and often science as well, views like mereological essentialism, nihilism, and fourdimensionalism appeal to our desire to avoid arbitrariness, anthropocentrism, and metaphysical conundrums.1 Such views are defensible only if they are materially adequate, only if they can “reconstruct” the world(More)
In chapter 9 of Knowledge and its Limits, Timothy Williamson argues for the thesis that the evidence that a subject has is constituted by propositions known by the subject (a thesis that he summarizes in the equation E=K). Moreover, Williamson also argues that whatever justifies a subject in believing a proposition is part of that subject’s evidence, and(More)
Does evolutionary theory have implications about the existence of supernatural entities? This question concerns the logical relationships that hold between the theory of evolution and different bits of metaphysics. There is a distinct question that I also want to address; it is epistemological in character. Does the evidence we have for evolutionary theory(More)
Purpose A medical imaging informatics infrastructure (MIII) platform is an organized method in selecting tools and synthesizing data from HIS/ RIS/PACS/ePR systems with the aim to develop an imaging-based diagnosis or treatment system. The next step is to design and implement the imaging informatics simulator for system evaluation. This tutorial is to(More)
Many philosophers think that, necessarily, any material objects have a fusion (let’s call that doctrine “Universalism”). In this paper I point out a couple of strange consequences of Universalism and related doctrines, and suggest that they are strange enough to constitute a powerful argument against those views. By “thing” I mean material thing. We all(More)
In our reply to Williamson, we offered models where traditional Gettier cases arise but which differ from Williamson’s models in three related respects: first, non-traditional, fake-barn style Gettier cases do not arise in our models; second, knowledge iterates in our models; and, finally, our models do not have the Moorish consequences of Williamson’s(More)
What the world needs now is another theory of vagueness. Not because the old theories are useless. Quite the contrary, the old theories provide many of the materials we need to construct the truest theory of vagueness ever seen. The theory shall be similar in motivation to supervaluationism, but more akin to many-valued theories in conceptualisation. What I(More)