« Turing was a quite brilliant mathematician, most famous for his work on breaking the German Enigma codes. It is no exaggeration to say that, without his outstanding contribution, the history of World War Two could well have been very different. He truly was one of those individuals we can point to whose unique contribution helped to turn the tide of war. The debt of gratitude he is owed makes it all the more horrifying, therefore, that he was treated so inhumanely. In 1952, he was convicted of gross indecency - in effect, tried for being gay. His sentence - and he was faced with the miserable choice of this or prison - was chemical castration by a series of injections of female hormones. He took his own life just two years later.
Thousands of people have come together to demand justice for Alan Turing and recognition of the appalling way he was treated. While Turing was dealt with under the law of the time and we can’t put the clock back, his treatment was of course utterly unfair and I am pleased to have the chance to say how deeply sorry I and we all are for what happened to him. Alan and the many thousands of other gay men who were convicted as he was convicted under homophobic laws were treated terribly. Over the years millions more lived in fear of conviction.
I am proud that those days are gone and that in the last 12 years this government has done so much to make life fairer and more equal for our LGBT community. This recognition of Alan’s status as one of Britain’s most famous victims of homophobia is another step towards equality and long overdue.
But even more than that, Alan deserves recognition for his contribution to humankind. For those of us born after 1945, into a Europe which is united, democratic and at peace, it is hard to imagine that our continent was once the theatre of mankind’s darkest hour. It is difficult to believe that in living memory, people could become so consumed by hate - by anti-Semitism, by homophobia, by xenophobia and other murderous prejudices - that the gas chambers and crematoria became a piece of the European landscape as surely as the galleries and universities and concert halls which had marked out the European civilisation for hundreds of years. It is thanks to men and women who were totally committed to fighting fascism, people like Alan Turing, that the horrors of the Holocaust and of total war are part of Europe’s history and not Europe’s present.
So on behalf of the British government, and all those who live freely thanks to Alan’s work I am very proud to say: we’re sorry, you deserved so much better. »
Mot-clé -
17 septembre 2009
Alan Turing, des excuses
14 novembre 2008
L'érotétique ou la logique des questions
Quelques ressources en ligne :
- David Harrah, The Logic of Questions
- Andrzej Wiśniewski, The Posing of Questions
- sur le site Web de Michal Peliš
- sur le site Web de Libor Behounek
- sur le site Web de Martin Stokhof
- Pavel Tichý, Questions, Answers, and Logic
20 mai 2008
Logique libres
Via LogBlog, (le permalien du billet cité ici ne semble pas fonctionner), le début d'une liste de manuels de logique librement disponibles, établis par Rob Loftis :
I've decided that my students should not have to pay for a logic textbook. Most textbooks are obscenely expensive., but logic textbooks in particular get in my craw. The formal systems that they teach have been a part of the human intellectual heritage for over a hundred years, and the textbooks don't do anything in particular to make more approachable for students. They survive on the laziness of instructors, not on any originality content or presentation.
1 mars 2008
Chaïm Perelman, L'empire rhétorique
La renaissance et la réhabilitation de la rhétorique dans la pensée contemporaine, à laquelle nous assistons actuellement, n'ont été possible qu'après un réexamen des rapports entre la dialectique et la rhétorique, tels qu'ils ont été établis par Aristote, et profondément modifiés, dans un sens défavorable à la rhétorique, par Pierre de la Ramée. C'est à un pareil réexamen que nous proposons de procéder : il expliquera les causes du dé&clin de la rhétorique et élucidera les rapports de la nouvelle rhétorique avec la théorie de l'argumentationChaïm Perelman, L'empire rhétorique, Vrin.
20 décembre 2007
Logique du second ordre et d'ordre supérieur
There are two approaches to the semantics of second-order logic. They differ on the interpretation of the phrase “for every set of objects.” Does this have some fixed meaning to which we can refer, or do we need to consider the variety of meanings the phrase might have? In the first case (which will be called standard semantics), we are taking for granted certain mathematical concepts. In the second case (which will be called general semantics), much less is being taken for granted. In this case, to be considered valid, a sentence will need to be true under all the allowable meanings of the phrase “for every set of objects.”
« billets précédents - page 2 de 8 - billets suivants »
