El filósofo francés Alain Guy (La Rochelle, 1918 - Narbonne, 1998) dedicó por entero su vida al estudio de la filosofía española e hispanoamericana, dándola a conocer no sólo en el extranjero sino también en nuestro país.
A new games model of the language FPC, a type theory with products, sums, function spaces and recursive types, is described. A definability result is proved, showing that every finite element of the model is the interpretation of some term of the language.
Recent models in quantum cosmology make use of the concept of imaginary time. These models all conjecture a join between regions of imaginary time and regions of real time. We examine the model of James Hartle and Stephen Hawking to argue that the various no-boundary attempts to interpret the transition from imaginary to real time in a logically consistent and physically significant way all fail. We believe this conclusion also applies to quantum tunneling models, such as that proposed by Alexander (...) Vilenkin. We conclude, therefore, that the notion of emerging from imaginary time is incoherent. A consequence of this conclusion seems to be that the whole class of cosmological models appealing to imaginary time is thereby refuted. (shrink)
Recent studies have shown that Einstein did not write the EPR paper and that he was disappointed with the outcome. He thought, rightly, that his own argument for the incompleteness of quantum theory was badly presented in the paper. We reconstruct the argument of EPR, indicate the reasons Einstein was dissatisfied with it, and discuss Einstein's own argument. We show that many commentators have been misled by the obscurity of EPR into proposing interpretations of its argument that do not accurately (...) represent Einstein's own views. Finally, we evaluate Einstein's own incompleteness argument, concluding that recent experimental findings have likely shown it to be unsound. (shrink)
This study tested the hypothesis that overt rehearsal is sufficient to explain enhanced memory associated with emotion by experimentally manipulating rehearsal of emotional material. Participants viewed two sets of film clips, one set of emotional films and one set of relatively neutral films. One set of films was viewed in each of two sessions, with approximately 1 week between the sessions. Participants were given a free recall test of all of films viewed approximately 1 week after the second session. Rehearsal (...) was manipulated by instructing one group of participants not to discuss the films with anyone (no talkgroup) and instructing a second group to discuss both sets of films with at least three people (forced talkgroup). A third group consisted of participants instructed not to discuss the films with anyone, but who did not comply with these instructions (talkersgroup). All groups recalled significantly more of the emotional films than the neutral films. Furthermore, the relative number of emotional and neutral films recalled did not differ significantly among the three groups. The results indicate that overt rehearsal is insufficient to explain the enhancing effects of emotion on memory. (shrink)
The European Union welfare standardsfor intensively kept pigs have steadilyincreased over the past few years and areproposed to continue in the future. It isimportant that the cost implications of thesechanges in welfare standards are assessed. Theaim of this study was to determine theprofitability of rearing pigs in a range ofhousing systems with different standards forpig welfare. Models were constructed tocalculate the cost of pig rearing (6–95 kg) in afully-slatted system (fulfilling minimum EUspace requirements, Directive 91630/EEC); apartly-slatted system; a high-welfare,straw-based system (...) (complying with the UK-basedRoyal Society for the Prevention of Cruelty toAnimals, Freedom Food standards) and afree-range system. The models were also used toassess the consequences of potential increasesin space allowance, and to estimate the cost ofrearing pigs under organic standards.The cost of rearing pigs ranged from92.0 p/kg carcass weight (cw) and 94.6 p/kgcw forthe partly-slatted and fully-slatted systems,to 98.8 p/kgcw and 99.3 p/kgcw for the FreedomFood and free-range systems respectively. Whenspace allowance was increased by 60% to levelsin a recent proposal to revise pig welfareDirective (91/630/EEC), the rearing costs wereunchanged for the free-range system but rose by4.6 p/kgcw for the fully-slatted system. Rearingcosts under organic standards were 31% higherthan in the free-range system. These resultssuggest that improved pig welfare can beachieved with a modest increase in cost. (shrink)
Machine-generated contents note: Preface -- 1 - Introduction -- Section One: Race Relations and Racial (In)justice in Colonial New Zealand -- 2 - Missionary and Maori, 1840-1865 -- 3 - Voiceless at Parihaka, 1881 -- 4 - Anti-Asian Racism in 'White' New Zealand -- Section Two: Legislating for Godliness -- 5 - Keeping Quiet About the Sabbath, 1860-1930 -- 6 - Sunday or Fun-day, 1931-1990 -- 7 - The Battle of the Booze -- 8 - Uncorking the Bottle: The Alcohol (...) Issue, 1920-2000 -- Section Three: In Search of Utopia -- 9 - Women Count in the 1890s -- 10 - Social Gospel and Socialism -- 11 - The 'Great Depression', 1929-1935 -- Section Four: Issues of War and Peace -- 12 - Fighting for Peace, 1899-1918 -- 13 - Versailles to Vietnam (and Beyond): Issues of War and Peace, 1919-1989 -- Section Five: Combating Racism at Home and Abroad -- 14 - Racism and Religion in Pukekohe, 1959 -- 15 - No Horis in the Scrum: Rugby and Race, 1959-1980 -- 16 - Tackling Apartheid: The 1981 Rugby Tour Controversy -- 17 - Race in the Eighties: 'Not One Acre More' at Bastion Point -- Section Six: The Place of Sex in Society -- 18 - Sex and Celluloid: The Film Censorship Debate, 1965- 1976 -- 19 - Abortion in the Back Streets: 1930 to 1960s -- 20 - Life versus Life: The 1970s Abortion Debate -- Section Seven: Issues of Gender and Sexuality -- 21 - Liberation at Last: Second-wave Feminism from 1970 -- 22 - Good as You? Gay or Sad? Debate over Homosexuality, 1960-1986 -- Section Eight: Toward the Future -- 23 - Hikoi and Hope: Social Justice in the 1990s -- 24 - Afterword -- Notes -- Abbreviations -- Bibliography -- Index. (shrink)
Hájek has recently presented the following paradox. You are certain that a cable guy will visit you tomorrow between 8 a.m. and 4 p.m. but you have no further information about when. And you agree to a bet on whether he will come in the morning interval (8, 12] or in the afternoon interval (12, 4). At first, you have no reason to prefer one possibility rather than the other. But you soon realise that there will definitely be a future (...) time at which you will (rationally) assign higher probability to an afternoon arrival than a morning one, due to time elapsing. You are also sure there may not be a future time at which you will (rationally) assign a higher probability to a morning arrival than an afternoon one. It would therefore appear that you ought to bet on an afternoon arrival. The paradox is based on the apparent incompatibility of the principle of expected utility and principles of diachronic rationality which are prima facie plausible. Hájek concludes that the latter are false, but doesn't provide a clear diagnosis as to why. We endeavour to further our understanding of the paradox by providing such a diagnosis. (shrink)
Unpublished draft. Let me know if you're interested to see it. See also my "Possibility and Permission? Intellectual Character, Inquiry, and the Ethics of Belief," forthcoming in H. Rydenfelt and S. Pihlstrom (eds.) William James on Religion (Palgrave McMillan “Philosophers in Depth” Series, 2012/2013).
The Cable Guy will definitely come between 8 a.m. and 4 p.m., and I can bet on one of two possibilities: that he will arrive between 8 and 12, or between 12 and 4. Since I have no more information, it seems (eminently) plausible to suppose the two bets are equally attractive. Yet Hajek has presented a tantalising argument that purports to show that the later interval is, initial appearances to the contrary, more choice worthy. In this paper, I rebut (...) the argument. (shrink)
We discuss the cable guy paradox, both as an object of interest in its own right and as something which can be used to illuminate certain issues in the theories of rational choice and belief. We argue that a crucial principle—The Avoid Certain Frustration (ACF) principle—which is used in stating the paradox is false, thus resolving the paradox. We also explain how the paradox gives us new insight into issues related to the Reflection principle. Our general thesis is that principles (...) that base your current opinions on your current opinions about your future opinions need not make reference to the particular times in the future at which you believe you will have those opinions, but they do need to make reference to the particular degrees of belief you believe you will have in the future. (shrink)
Review of Julian Savulescu, Ruud ter Meulen and Guy Kahane eds., Enhancing Human Capacities Content Type Journal Article Category Book Review Pages 1-4 DOI 10.1007/s12152-011-9148-y Authors Thomas Johnson, Graduate School of Humanities and Social Sciences, University of Melbourne, Parkville, VIC, Australia Journal Neuroethics Online ISSN 1874-5504 Print ISSN 1874-5490.
The Cable Guy is coming. You have to be home in order for him to install your new cable service, but to your chagrin he cannot tell you exactly when he will come. He will definitely come between 8.a.m. and 4 p.m. tomorrow, but you have no more information than that. I offer to keep you company while you wait. To make things more interesting, we decide now to bet on the Cable Guy’s arrival time. We subdivide the relevant part (...) of the day into two 4-hour long intervals, ‘morning’: (8, 12], and ‘afternoon’: (12, 4). You nominate an interval on which you will bet. If he arrives during your interval, you win and I will pay you $10; otherwise, I win and you will pay me $10. Notice that we stipulate that if he arrives exactly on the stroke of noon, then (8, 12] is the winning interval, since it is closed on the right; but we agree that this event has probability 0 (we have a very precise clock!). At first you think: obviously there is no reason to favour one interval over the other. Your probability distribution of his arrival time is uniform over the 8 a.m. – 4 p.m. period, and thus assigns probability 1/2 to each of the two 4-hour periods at issue. Whichever period you nominate, then, your expected utility is the same. The two choices are equally rational. But then you reason as follows. Suppose that you choose the morning interval. Then there will certainly be a period during which you will regard the other interval as.. (shrink)
This article reviews the importance of the French philosopher Guy Hocquenghem. An early theorist of radical homosexuality, Hocquenghem was prescient about the rightward pull on many in the ‘68 generation in France, including those who would go on to media fame in France for liberal critiques of their earlier political incarnations. Hocquenghem would die too soon in 1988, but not before leaving an influential corpus for those thinking non-heterosexist forms of desire and political communities.
This paper replies to Politzer’s ( 2007 ) criticisms of the mental model theory of conditionals. It argues that the theory provides a correct account of negation of conditionals, that it does not provide a truth-functional account of their meaning, though it predicts that certain interpretations of conditionals yield acceptable versions of the ‘paradoxes’ of material implication, and that it postulates three main strategies for estimating the probabilities of conditionals.
Greek philosophy for kids “I know that I know nothing.” With this classic statement, uttered over two thousand years ago, Socrates set the standard for the future of Western philosophy. By day, he soaked up the sun in the Athenian marketplace, where he’d converse for hours on end about the meaning of wisdom, right and wrong, courage, justice, and love. By night, he feasted and danced with friends. He was charming, but not handsome, happy, but not rich. Unfortunately, his method (...) of thinking did not sit well with everyone. In the end, his fellow Athenians punished him with death. The story of Socrates’ life unfolds through cheerful illustrations and a two-tiered text, one layer quite simple, the other full of juicy additional details about the philosopher’s life and times. The ending assembles a “School of Athens,” showcasing thinkers, from Erasmus to Martin Luther King, Jr., who have been inspired by Socrates’ philosophy. (shrink)
