New SEP entry on conditionals by Horacio Arlo-Costa: This article provides a survey of recent work in conditional logic. Three main traditions are considered: the one dealing with ontic models, the one focusing on probabilistic models and the one utilizing epistemic models of conditionals.

New SEP entry on Combining Logics by Walter Carnielli and Marcelo Esteban Coniglio: The subject of combinations of logics is still a young topic of contemporary logic. Besides the pure philosophical interest offered by the possibility of defining mixed logic systems in which distinct operators obey logics of different nature, there exist also many pragmatical … Continue reading Combining Logics

Call for PapersThe Society for Exact Philosophy invites submission of papers for the 36th annual S.E.P. conference to be held at the University of Wyoming in Laramie, Wyoming. May 13-17, 2008.Keynote speakers:George Bealer (Yale),Charles Chihara (Berkeley),Graeme Forbes (Colorado).Conference organizer: Prof. Mark Moffett (Wyoming).Paper submissions in all areas of analytic philosophy are welcomed.Paper submission deadline: January … Continue reading CfP: Society for Exact Philosophy 2008

Two ads for positions with AOS or AOC in logic: The Department of Philosophy, University of Alberta, invites applications for a tenure-track position in Philosophy, with a specialization in Logic. Other areas of research and teaching specialization and competence are open. The appointment will be made at the rank of Assistant Professor, effective July 1, … Continue reading Logic Jobs at Alberta, Simon Fraser

The new LaTeX package turnstile lets you make fancy turnstile characters and put labels above and below the line (e.g., \vdash^x_L, but the right way).HT: The Academic Geek (aka Kai von Fintel)

Unfortunately, I didn't think of the title myself. It's the title of one of the workshops at the Calgary Folk Festival, one where a bunch of artists play together, usually with an emphasis on the words (I haven't been, so I really don't know what they're like, but a few years ago they had Jane … Continue reading Weapons of Fast Deduction

Can you help the ASL Committee on Logic Education? Please take this survey. Dear Members of the ASL,One of the responsibilities of the ASL Education Committee is to help its membership tackle pedagogical difficulties in teaching logic courses. In order to properly do this, we need to fully understand the goals such courses are intended … Continue reading Logic Course Survey

Peter and Ole were faster than me, so I'll just link to their posts:Peter Smith on Mathematical Logic by Chiswell and Hodges and The Mathematics of Logic by Kaye.Ole Thomassen Hjortland on Logic's Lost Genius: The Life of Gerhardt Gentzen by Mentzler-Trott.

Below the funding statistics for grants in the Philosophy Committee for SSHRC Standard Research Grants. The explanation for why so few grants were awarded this year is pretty clear: rather than cut grants across the board, SSHRC decided to respond to the 23% cut in overall funding for the program over last year by making … Continue reading SSHRC Funding Stats

The Social Sciences and Humanities Research Council of Canada has posted a list of new Standard Research Grants for 2007. (Last year's projects were discussed here.) This year's stats: 88 applications (2006: 85, 2005: 96, 2004: 92), 26 grants, for a success rate of 29% (2006: 37%, 2005: 38%, 2004: 48%). This year, new scholars … Continue reading New Canadian Research Grants to Philosophers

John Carpenter's Dark Star is a masterpiece! [youtube=http://www.youtube.com/watch?v=qjGRySVyTDk]

New and improved SEP entry on dynamic logic by Philippe Balbiani is now up.

Skolemization is the familiar procedure by which you replace strong quantifiers in a formula by function symbols in such a way that A is provable iff AS is provable. This doesn't work in intuitionistic logic: the "only if" works, but the "if" doesn't. E.g., ¬¬(A(c) ∨ ¬ A(c)) is provable intuitionistically, but not ¬¬(∀x)(A(x) ∨ … Continue reading Skolemization in Intuitionistic Logic

I'm at the Moscow-Vienna Workshop on Logic and Computation. We're on the second day. Yesterday was started off with a way-over-my-head talk by Sergei Adian on his and Novikov's solution to the Burnside problem. Today, Michel Parigot just gave a very interesting talk on a constructive, but classical proof system. His aim is to develop … Continue reading Moscow-Vienna Workshop

Please read the following message from the President of the Association for Symbolic Logic. The terms of office of the editors begin July 1, by then information on how to submit papers should be online at the RSL webpage (not yet functional--but the submission email is rsl@uci.edu, I can tell you that much). Dear Colleagues,It … Continue reading The Review of Symbolic Logic

Now they're doing philolsphers.HT: LanguageLog

Since it's Caturday, I thought I'd make a proof theory lolcat.

As Gary Hardcastle and Alan Richardson reminded me, today is both Rudolf Carnap's and Bertrand Russell's birthday.

(xkcd has funny ALT tags on their panels; go to the site to see them.)

A conference in honor of William Craig Craig's interpolation theorem is part of the standard logic curriculum. This and other results of Craig's have had a profound significance in logic, philosophy of science, philosophy of logic, and computer science. Six internationally distinguished speakers will reflect on the importance and impact of Craig's work: Solomon Feferman … Continue reading Interpolations