∃x∀y∃z[Qx∧(My→Pyx)∧Wz ∧Pzx] ∨ ∃x[Qx∧∀y(My→Pyx)∧∃z(Wz∧Pzx)] ? [more inside]
posted by ed\26h on Sep 6, 2009 - 9 answers

What are some simple experiments that help explain complicated phenomena? [more inside]
posted by Christ, what an asshole on Jul 6, 2009 - 15 answers

Did Pythagoras exist? [more inside]
posted by painquale on Feb 14, 2009 - 11 answers

What are some easy, relatively quick ways to learn to write better, think clearer, and express myself better? [more inside]
posted by Bageena on Jan 28, 2009 - 24 answers

Can someone explain why despite the fact that every one of these incidents occurs at a unique time and place, each involves a complex history of events and personal decisions leading to its very unlikely outcome, that the death toll on the roads year-on-year is so predictable? See here and here. [more inside]
posted by zaebiz on Dec 28, 2008 - 47 answers

If a man’s wit be wandering, let him post a question about mathematics and reasoning to MetaFilter. [more inside]
posted by jason's_planet on Sep 25, 2007 - 20 answers

What are some good writings on the relationship between what we think of as the physical world and the world of mathematical abstractions (the space in which, for example, all possible sequences exist) ? [more inside]
posted by teleskiving on Jun 19, 2005 - 16 answers