Online research in philosophy

A bivalent valuation is snt iff sound (standard PC inference rules take truths only into truths) and non-trivial (not all wffs are assigned the same truth value). Such a valuation is normal iff classically correct for each connective. Carnap knew that there were non-normal snt valuations of PC, and that the gap they revealed between syntax and semantics could be "jumped" as follows. Let $VAL_{snt}$ be the set of snt valuations, and $VAL_{nrm}$ be the set of normal ones. The bottom (...) row in the table for the wedge 'v' is not semantically determined by $VAL_{snt}$ , but if one deletes from $VAL_{snt}$ all those valuations that are not classically correct at the aforementioned row, one jumps straights to $VAL_{nrm}$ and thus to classical semantics. The conjecture we call semantic holism claims that the same thing happens for any semantic indeterminacy in any row in the table of any connective of PC, i.e., to remove it is to jump straight to classical semantics. We show (i) why semantic holism is plausible and (ii) why it is nevertheless false. And (iii) we pose a series of questions concerning the number of possible steps or jumps between the indeterminate semantics given by $VAL_{snt}$ and classical semantics given by $VAL_{nrm}$. (shrink)

Originally published in 1991, The Laboratory of the Mind: Thought Experiments in the Natural Sciences, is the first monograph to identify and address some of the many interesting questions that pertain to thought experiments. While the putative aim of the book is to explore the nature of thought experimental evidence, it has another important purpose which concerns the crucial role thought experiments play in Brown’s Platonic master argument.In that argument, Brown argues against naturalism and empiricism (Brown 2012), (...) for mathematical Platonism (Brown 2008), and from the Platonist-friendly, abstract universals posited by the Dretske-Tooley-Armstrong (DTA) account of the laws of nature to a more general, physical Platonism. The Laboratory of the Mind is where he takes this final step. (shrink)

First of all, I just want to say that in my opinion this is an interesting and thought-provoking book, and a badly needed corrective to certain mistaken assumptions about James. I find myself very much in sympathy with many of its main points. Some of the things I have to say in the following may— or perhaps may not—be thought to disagree with some of what Professor Brown has argued in his book. If that is so, it should (...) be taken only as an indication of the degree to which William James on Radical Empiricism and Religion stimulates philosophical thought. Similarly, the essay I found myself preparing for this occasion seems in the end to have a lot more to do with what I think about James than, on the surface, it does with Professor Brown’s book: again, I would wish this to be seen as a compliment to the high quality of his work (which is certainly the way I see it), since everything I might have come up with here is in response to my reading of his book. (shrink)

Peter G. Brown and Jeremy J. Smith (eds): Water Ethics: Foundational Readings for Students and Professionals Content Type Journal Article Pages 1-3 DOI 10.1007/s10806-011-9310-x Authors Neelke Doorn, Department of Technology Policy and Management, Section of Philosophy, 3TU. Centre of Ethics and Technology/Delft University of Technology, PO Box 5015, 2600 GA Delft, The Netherlands Journal Journal of Agricultural and Environmental Ethics Online ISSN 1573-322X Print ISSN 1187-7863.

Biographical Information The author is a Professor of Physics at New York University. His main research interests are in statistical mechanics and quantum field theory. He is co-author with Roberto Fern´andez and J¨.

All three authors range themselves against John Norton's deductive analysis of thought experiments. Brown's insight, Nersessian's mental modelling, and Gooding's embodiment, arise, in each case, from a major all-purpose philosophical theory. None reaches down to the specific level of thought experiments, which are small, rare, and precious. I urge attention to Wittgenstein's remark that "the experimental character disappears when one looks at the process as a memorable picture." Thought experiments are not experiments. They are static. They become fixed, more (...) like jokes or optical illusions. Unlike real experiments, they have no life of their own. (shrink)

Externalists about mental content are supposed to face the following dilemma. Either they must give up the claim that we have privileged access to our own mental states or they must allow that we have privileged access to the world. The dilemma is posed in its most precise form through the McKinsey-Brown argument (McKinsey 1991; Brown 1995). Over the years since it was ?rst published in 1991, our understanding of the precise character of the premisses which constitute the (...) argument has been re?ned. It is based on three claims (where A partially serves to characterise the content of some belief state for which Externalism is true and E is some proposition about the external world). (shrink)