Guest Blog @ Proofs from the Book

February 26, 2013 at 8:36 am 2 comments

I discovered Guillermo Bautista’s blog Proofs from the Book about a month ago, and I wrote about it last week. But just yesterday, Guillermo published a guest post showing the connection between proofs and jokes written by little ol’ me. His blog is worth checking out whether you want to read my post or not.

Paul Erdös once said, “You don’t have to believe in God, but you should believe in The Book.” He was referring to a mystical book in which the most elegant proofs of all theorems appear. The Book is the inspiration for the name of Guillermo’s new blog. Unfortunately, Martin Aigner and Günter M. Ziegler had the same inspiration when they published Proofs from THE BOOK in 1998. Some may think that this duplication is unfortunate. But I say that sometimes lightning strikes twice. After all, if Newton and Liebniz can both be credited for discovering the calculus, then Guillermo deserves as much credit as others for coming up with this awesome name.

The following are some methods of proof that are covered neither in the book Proofs from THE BOOK or at the blog Proofs from the Book.

Proof by Obviousness: “The proof is so clear that it need not be mentioned.”

Proof by Lack of Sufficient Time: “Because of the time constraint, I’ll leave the proof to you.”

Proof by Lack of Sufficient Space: “I have discovered a truly marvelous proof of this [theorem], which this margin is too narrow to contain.”

Proof by General Agreement: “All in favor?”

Proof by Imagination: “Wel, let’s pretend it’s true.”

Proof by Necessity: “It had better be true, or the entire structure of mathematics would crumble to the ground.”

Proof by Plausibility: “It sounds good, so we’ll assume it’s true.”

Proof by Intimidation: “Don’t be stupid; of course, it’s true.”

Proof by Accident: “Hey, what have we here?”

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Math Limerick Problems Math Dot-to-Dot

2 Comments Add your own

  • 1. xander  |  February 26, 2013 at 1:14 pm

    Proof by Exercise: We never really checked to make sure that this works, so the proof is left as an exercise to the reader.

    Proof by Incredulity: Of course its true! What could possibly go wrong?

    Reply

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About MJ4MF

The Math Jokes 4 Mathy Folks blog is an online extension to the book Math Jokes 4 Mathy Folks. The blog contains jokes submitted by readers, new jokes discovered by the author, details about speaking appearances and workshops, and other random bits of information that might be interesting to the strange folks who like math jokes.

MJ4MF (offline version)

Math Jokes 4 Mathy Folks is available from Amazon, Borders, Barnes & Noble, NCTM, Robert D. Reed Publishers, and other purveyors of exceptional literature.

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