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Gadi A earned this badge 14 times
apr 13 at 23:47Why an inconsistent formal system can prove everything?
may 31 '12 at 22:00Once and for all - “Rational numbers” - because of ratio, or because they make sense?
nov 22 '11 at 8:01Prime dividing the binomial coefficients
oct 25 '11 at 14:04Is Hilbert's second problem about the real numbers or the natural numbers?
oct 9 '11 at 10:38Primes of the form $n^2+1$ - hard?
aug 22 '11 at 8:21“Proof” that ZFC is inconsistent using Turing machines
aug 21 '11 at 17:41Is this similarity between trees and vector space bases just a coincidence?
jun 4 '11 at 13:01How to convince a layman that the $\pi = 4$ proof is wrong?
may 17 '11 at 10:42Simple “real life” NP-hard problems?
dec 24 '10 at 10:02Product of all elements in an odd finite abelian group is 1
nov 14 '10 at 21:14Uses of quadratic reciprocity theorem
oct 15 '10 at 19:09How fundamental is the fundamental theorem of algebra?