Santafe Center for Photography

Furstenberg's topological proof of the infinitude of primes ...

It is a topological proof that there are infinitely many primes. (Note: apologies to my readers who have not take a course in point-set topology.) Theorem. There are infinitely many primes. Suppose, for the sake of contradiction, ...

When is proof by contradiction necessary? « Gowers's Weblog

In which case, perhaps the advice that I give to students — proof by contradiction is a very useful tool, but try not to use it unless you really need it — is, though not completely precise, about the best one can do. Share this: ...

The MRA-PUA/Roissy-Game Twerps: They Say She's Really a Man, Part ...

More like a Proof by Contradiction: let's see if the opposite decision (Smart Girls not going their own way, abbreviated WNGTOW) holds water. ——An Aside. How can a SG be lacking in direct experience? Surely they are all sluts? * ...

Proof of negation and proof by contradiction « Mathematics and ...

I am discovering that mathematicians cannot tell the difference between “proof by contradiction” and “proof of negation”. This is so for good reasons, but conflation of different kinds of proofs is bad mental hygiene which leads to bad ...

Proof by Contradiction (Detailed Tutorial)

I had my tutorial author write this up earlier today. At the end it provides "evidence" for the principle's veracity. I need to read the last part more carefully myself.. [Link removed.. needs editing] Any comments?

Woman with the highest IQ in the world

The Write Way by Tiberius Kerk BOOK REVIEW The Power of Logical Thinking by Marilyn Vos Savamt) What would you do if you meet a woman with the highest IQ in the world? There are two options. One, you make a quick detour to get out of her way, and two, you read a book by her. I took the second option and found out that we are just about equal. Just kidding! Let’s get the record straight. In 1985 ...

The Adjudicator verdict: AFL R20

It's almost 20 years since something amazing happened in the sporting world and the almighty tipping machine that is The Adjudicator ain't talking about Gary Kasparov retaining his World Chess Championship title.

RT @NJ_Sweet_Tee: A form of proof by contradiction...interesting and true I think @fifibutterfly

RT @NJ_Sweet_Tee: A form of proof by contradiction...interesting and true I think @fifibutterfly<I concur #smartgirls

A form of proof by contradiction...interesting and true I think @fifibutterfly

A form of proof by contradiction...interesting and true I think @fifibutterfly

@algopuzzles: will be odd, but it should be even. Proof by contradiction, there will be a path b/w u and othr odd degree vrtx.

@algopuzzles: will be odd, but it should be even. Proof by contradiction, there will be a path b/w u and othr odd degree vrtx.