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Category Theory News

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Kick-Ass (Two-Disc Blu-ray/DVD Combo Pack + Digital Copy)

2010-08-02
List Price: $39.99Price: $22.99You Save: $17.00 (43%)1 used & new from $22.99The cinematic equivalent of a half case of Red Bull chased with donuts, Kick-Ass is a giddy, violent experience--and not your average superhero movie. Based on the comic book by Mark Millar and John Romita Jr., it offers a set of heroes who are decidedly without superpowers: Dave Lizewski (Aaron Johnson) decides he'll be just like a comic-book character, and puts on a ridiculous green suit to fight... (read more)
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Iron Man 2 (Blu-ray/DVD Combo + Digital Copy)

2010-09-27
List Price: $39.99Price: $26.99You Save: $13.00 (33%)1 used & new from $26.99After the high-flying adventures of the first Iron Man picture, the billionaire arms manufacturer and irrepressible bon vivant Tony Stark (Robert Downey Jr.) finds himself nursing a hangover. But not like any hangover he's had before: this one is toxic, a potentially deadly condition resulting from heavy metals (or something) bleeding out of the hardware he's installed in the middle of his chest. This is the problem Stark needs to solve in Iron Man 2, not to mention the threat from(read more)
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Clash of the Titans [Blu-ray]

2010-07-26
List Price: $35.99Price: $24.99You Save: $11.00 (31%)37 used & new from $18.99"Release the Kraken!" Ah, it could only be Clash of the Titans, the 2010 remake that retains the instruction to unleash the great beastie from the sea. The 1981 original boasted Ray Harryhausen's legendary stop-motion technique of animating various mythological creatures--it was his final feature project--and given the cornball approach of the movie in general, that was the main draw. The remake supplies new state-of-the-art special effects (released in 3-D) and a nicely muscular sense of(read more)
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Clash of the Titans

2010-07-26
List Price: $28.98Price: $16.99You Save: $11.99 (41%)38 used & new from $11.04"Release the Kraken!" Ah, it could only be Clash of the Titans, the 2010 remake that retains the instruction to unleash the great beastie from the sea. The 1981 original boasted Ray Harryhausen's legendary stop-motion technique of animating various mythological creatures--it was his final feature project--and given the cornball approach of the movie in general, that was the main draw. The remake supplies new state-of-the-art special effects (released in 3-D) and a nicely muscular sense of(read more)
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P90X Extreme Home Fitness Workout Program - 13 DVDs, Nutrition Guide, Exercise Planner

2010-08-01
List Price: $150.00Price: $139.80You Save: $10.20 (7%)1 used & new from $139.80Tired of ineffective workouts that sound great but produce less-than-optimal results? Turn to the P90X Extreme Home Fitness system, a bundle of 12 sweat-inducing, muscle-pumping workouts designed to transform your body from regular to ripped in just 90 days. Hosted by personal trainer Tony Horton, the series of DVDs will help you get lean, bulk up, or grow stronger, with an endless variety of mix... (read more)

Yet Another F(ascinat)ing Monad Tutorial (part 1)

2010-07-25
One prerequisite I will not be assuming is any knowledge of category theory, which is a very abstract branch of mathematics where the concept of a monad (as the term is used here) originated. Although knowing category theory is not ...

Category Theory and Philosophy of Mathematics Today « The n ...

2010-05-02
Category Theory and Philosophy of Mathematics Today. By John Baez. Here's an interesting series of talks, announced by Andrei Rodin on the category theory mailing list: Category Theory and Philosophy of Mathematics Today ...

A Neighborhood of Infinity: A Partial Ordering of some Category ...

2010-03-28
I've had a few requests from people wanting to teach themselves applications of Category Theory to Haskell based on posts I've made. I've made things difficult by posting stuff at random levels of difficulty and without any kind of ...

Covariance and contravariance in math and CS — The Endeavour

2010-07-19
Wikipedia has a short but readable introduction to category theory including covariant and contravariant functors. See also A Categorical Manifesto (PostScript file). The terms covariant and contravariant were defined in category theory ...

Flipping arrows in coBurger King : Inside 245s

2010-07-14
join is far more rooted in category theory (indeed, it defines the natural transformation that is the infamous binary operation that makes monads monoids), and you should convince yourself that either join or >>= will get the job done. ...

Los Angeles Lakers Primed for a Three-Peat, Defensively Speaking

2010-07-31
Popular theory in the NBA says defense wins playoff games and rebounding wins championships, and the Los Angeles Lakers' title in 2010 serves as proof for that theory. The Lakers may be known for their triangle offense, but the team is defined by their defense, which just happened to be the constant in an otherwise inconsistent regular season. The Lakers were second only to the Chicago Bulls in ...

Polymer Passage Takes Time

2010-07-30
New theory aids researchers studying DNA, protein transportPolymer strands wriggle their way through nanometer-sized pores in a membrane to get from here to there and do their jobs. New theoretical research by Rice University scientists quantifies precisely how long the journey takes.That's a good thing to know for scientists studying the transport of RNA, DNA and proteins -- all of which count ...

Girl is mother of the woman

2010-07-30
I never gave much credence to the theory that one's personality is formed by first or second grade, until I recently found my elementary school report cards. Reading what my teachers wrote about me at Tularcitos Elementary in Carmel Valley in the late 1970s,... Elementary school - Second grade - Education - 1970s - K through 12

Hot To Get Paid To Drive

2010-07-30
Category: Events & Auditions User : wicked9690 Date : Saturday, 31/07/10 - 06:46AM Description : You could possibly have witnessed many news articles revealing that you can make money driving , and actually receive free cars. You will need to be residing in the proper area if you would like to engage in in this kind of projects and generate money driving a vehicle. You can make money driving ...

Book Review - Long for This World - The Strange Science of Immortality - By Jonathan Weiner

2010-07-30
A Pulitzer Prize-winning writer examines the scientific battle against aging through the bizzare career of the English gerontologist Aubrey de Grey.

Category Theory for Computing Science, Barr&Wells, 1999が圏論の教科書として一番良さそうだ。なぜかAmazonで扱ってない。第3版が最新。

2010-07-31
Category Theory for Computing Science, Barr&Wells, 1999が圏論の教科書として一番良さそうだ。なぜかAmazonで扱ってない。第3版が最新。

某筋から具体例がほとんどないのが難点だけど S.Awodey のCategory theory が証明のgap がなくてよいという情報が。http://www.amazon.co.jp/dp/0199237182

2010-07-31
某筋から具体例がほとんどないのが難点だけど S.Awodey のCategory theory が証明のgap がなくてよいという情報が。http://www.amazon.co.jp/dp/0199237182

StackExchange: Is there a standard notation for binary relations in category theory? - http://stackexchangesites.com/RQG

2010-07-31
StackExchange: Is there a standard notation for binary relations in category theory? - http://stackexchangesites.com/RQG

Amazonからメールきたー。今朝、急に支払い番号通知メールを送ったのは、 "Category Theory (Oxford Logic Guides)"が予定より早く発送できるようになったのが理由らしい。予定より早く読めるのはいいけど、貯金を切り崩さないとお金ない。。

2010-07-30
Amazonからメールきたー。今朝、急に支払い番号通知メールを送ったのは、 "Category Theory (Oxford Logic Guides)"が予定より早く発送できるようになったのが理由らしい。予定より早く読めるのはいいけど、貯金を切り崩さないとお金ない。。

Category Theory (Oxford Logic Guides) の支払い番号が来てるんですけどまだお金無い...orz

2010-07-30
Category Theory (Oxford Logic Guides) の支払い番号が来てるんですけどまだお金無い...orz