Bryan Frances

Many theorists have contended that since the mind depends on the brain, the contents of our thoughts are determined by just the intrinsic physical properties of our bodies. In the first part of my dissertation I examine this theory's negation, anti-individualism, by investigating the "Twin-Earth" thought experiments of Putnam and Burge. Although anti-individualism has recently become widely accepted, I argue that none of the arguments given thus far are sound; nor has the theory been given a proper formulation. I also argue that no one has articulated an interesting and true version of externalism, the related idea that if one is thinking, for example, that water is wet, then one's environment has certain empirical features . However, I then proceed to present a true version of externalism and a sound argument for a version of anti-individualism. ;In the past few years many theorists have argued that the Twin-Earth arguments, if they prove anything, have stunning implications: they refute physicalism, scepticism, authoritative self-knowledge, and the causal construal of psychological explanation; and they show that the contents of our thoughts that are appealed to in ordinary psychological explanation are not the contents captured by the sentences we use in those explanations. I attempt to refute all these arguments. ;In the second part of the dissertation I argue against the thesis that thought and action tokens exist and are, at bottom, physical entities. Roughly put, one of the main premises of the main argument is that if an action token has a physical makeup then there cannot be radically incompatible but equally plausible proposals regarding what that makeup is; but since there are such proposals, the tokens have no physical makeup. I then formulate a naturalist but nonphysicalist view of mental tokens

Content externalism is the dominant view in the philosophy of mind. Content essentialism, the thesis that thought tokens have their contents essentially, is also popular. And many externalists are supporters of such essentialism. However, endorsing the conjunction of those views either (i) commits one to a counterintuitive view of the underlying physical nature of thought tokens or (ii) commits one to a slightly different but still counterintuitive view of the relation of thought tokens to physical tokens as well as a rejection of realist physicalism. In this essay I reveal the problem and articulate and adjudicate among the possible solutions. I will end up rejecting content essentialism

Kripke’s puzzle has puts pressure on the intuitive idea that one can believe that Superman can fly without believing that Clark Kent can fly. If this idea is wrong then many theories of belief and belief ascription are built from faulty data. I argue that part of the proper analysis of Kripke’s puzzle refutes the closure principles that show up in many important arguments in epistemology, e.g., if S is rational and knows that P and that P entails Q, then if she considers these two beliefs and Q, then she is in a position to know that..

In this article I offer a three-pronged defense of Millian theories, all of which share the rough idea that all there is to a proper name is its referent, so it has no additional sense. I first give what I believe to be the first correct analysis of Kripke’s puzzle and its anti-Fregean lessons. The main lesson is that the Fregean’s arguments against Millianism and for the existence of semantically relevant senses (that is, individuative elements of propositions or belief contents that are sensitive to our varying personal conceptions of the referents of those elements) are viciously circular. Thus, the Fregean must give new arguments for her central claims. Second, I offer an original, positive argument for the Millian idea that the thoughts that Cicero was bald and that Tully was bald are identical. Incredibly, the argument appeals to nothing but highly intuitive, pre-theoretical principles regarding folk psychological usage—traditionally the source of Fregean intuitions. Third, I examine one of the most important recent papers on Kripke’s puzzle, that by David Sosa (1996). Sosa claims to have found a way to turn the tables on Kripke’s puzzle by using it to argue against Millian theories. I argue that Sosa’s argument on behalf of the Fregean is question-begging. I conclude that Millian theories can be seriously defended without any use of theoretical constructs such as guises or Russellian propositions, and Fregeans need to start over arguing for their theory’s central claims.

Saul Kripke's puzzle about belief demonstrates the lack of soundness of the traditional argument for the Fregean fundamental principle that the sentences 'S believes that a is F' and 'S believes that b is F' can differ in truth value even if a = b. This principle is a crucial premise in the traditional Fregean argument for the existence of semantically relevant senses, individuative elements of beliefs that are sensitive to our varying conceptions of what the beliefs are about. Joseph Owens has offered a new argument for this fundamental principle, one that is not subject to Kripke's criticisms. I argue that even though Owens' argument avoids Kripke's criticisms, it has other flaws.

One of the hardest problems in philosophy, one that has been around for over two thousand years without generating any significant consensus on its solution, involves the concept of vagueness: a word or concept that doesn't have a perfectly precise meaning. There is an argument that seems to show that the word or concept simply must have a perfectly precise meaning, as violently counterintuitive as that is. Unfortunately, the argument is usually so compressed that it is difficult to see why exactly the problem is so hard to solve. In this article I attempt to explain just why it is that the problem – the sorites paradox – is so intractable.Export citation.

Regardless of who you are or how you live your life, you disagree with millions of people on an enormous number of topics from politics, religion and morality to sport, culture and art. Unless you are delusional, you are aware that a great many of the people who disagree with you are just as smart and thoughtful as you are - in fact, you know that often they are smarter and more informed. But believing someone to be cleverer or more knowledgeable about a particular topic usually won’t change your mind. Should it? This book is devoted to exploring this quandary - what should we do when we encounter disagreement, particularly when we believe someone is more of an authority on a subject than we are? The question is of enormous importance, both in the public arena and in our personal lives. Disagreement over marriages, beliefs, friendships and more causes immense personal strife. People with political power disagree about how to spend enormous amounts of money, about what laws to pass, or about wars to fight. If only we were better able to resolve our disagreements, we would probably save millions of lives and prevent millions of others from living in poverty. The first full-length text-book on this philosophical topic, Disagreement provides students with the tools they need to understand the burgeoning academic literature and its perspectives. Including case studies, sample questions and chapter summaries, this engaging and accessible book is the perfect starting point for students and anyone interested in thinking about the possibilities and problems of this fundamental philosophical debate

We all can identify many contemporary philosophy professors we know to be theists of some type or other. We also know that often enough their nontheistic beliefs are as epistemically upstanding as the non-theistic beliefs of philosophy professors who aren’t theists. In fact, the epistemic-andnon-theistic lives of philosophers who are theists are just as epistemically upstanding as the epistemic-and-non-theistic lives of philosophers who aren’t theists. Given these and other, similar, facts, there is good reason to think that the pro-theistic beliefs of theistic philosophers are frequently epistemically upstanding. Given their impeccable epistemic credentials on non-theistic matters, the amount of careful thought that lies behind their theism, the large size of the community of philosophical theists, as well as other, similar facts, it would be surprising if all or even most of their pro-theistic beliefs were epistemically blameworthy in some or other signicant sense tied to charges such as ‘He should know better than to believe that’ (so mere false belief need not be blameworthy in this sense; the use of ‘blameworthy’ will be claried below). Of course some of the pro-theistic beliefs of some theistic philosophers are epistemically blameworthy; the mere large numbers of fallible theistic philosophers almost guarantees it. My point here is that it would be unexpected if most of the pro-theistic beliefs of theistic philosophers were epistemically blameworthy

The Burge-Putnam thought experiments have generated the thesis that beliefs are not fixed by the constitution of the body. However, many philosophers have thought that if this is true then there must be another content-like property. Even if the contents of our attitudes such as the one in ‘believes that aluminum is a light metal’, do not supervene on our physical makeups, nevertheless people who are physical duplicates must be the same when it comes to evaluating their rationality and explaining their actions. I argue that the considerations motivating this view are best handled with just the ordinary ‘that’-clause contents.

In this essay (for undergraduates) I introduce three of the famous semantic paradoxes: the Liar, Grelling’s, and the No-No. Collectively, they seem to show that the notion of truth is highly paradoxical, perhaps even contradictory. They seem to show that the concept of truth is a bit akin to the concept of a married bachelor—it just makes no sense at all. But in order to really understand those paradoxes one needs to be very comfortable thinking about how lots of interesting sentences talk about not dogs or cats or elections or baseball but sentences. That is, we need to get familiar analyzing sentences that talk about sentences.

Millianism is reasonable; that is, it is reasonable to think that all there is to the semantic value of a proper name is its referent. But Millianism appears to be undermined by the falsehood of Substitutivity, the principle that interchanging coreferential proper names in an intentional context cannot change the truth value of the resulting belief report. Mary might be perfectly rational in assenting to ‘Twain was a great writer’ as well as ‘Clemens was not a great writer’. Her confusion does not seem to preclude her from assenting to those sentences in a normal, understanding manner. That is, Assent-for-Mary is true: Mary can knowingly assent to ‘Twain was a great writer’ and ‘Clemens was not a great writer’. By Disquotation—the rough principle that if in ordinary circumstances one assents to “P”, then one believes that P—Mary believes that Twain was a great writer and she believes that it’s not the case that Clemens was a great writer. If Substitutivity were true, then since ‘Mary believes that Twain was a great writer’ is true, ‘Mary believes that Clemens was a great writer’ would have to be true too. But then Mary would amount to a refutation of the plausible principle Consistency that, roughly put, no rational adult can have occurrently held and reflectively considered and compared contradictory beliefs. Since Disquotation, Assent-for-Mary, and Consistency are true, Substitutivity has to go.