120 more wordsA long time ago an older and well-known number theorist made some disparaging remarks about Paul Erdős’s work. You admire Erdős’s contributions to mathematics as much as I do, and I felt annoyed when the older mathematician flatly and definitively stated that all of Erdős’s work could be “reduced” to a few tricks which Erdős repeatedly relied on in his proofs.

## Tags » David Hilbert

#### The mathematician's tricks

#### Revolution (Constant Curvature I)

One of the standard elementary surfaces is the *Pseudosphere, *a surface of revolution of constant negative curvature.

It can be parametrized using elementary function, and the profile curve is the so-called… 293 more words

#### Great Stuff By David Hilbert That I'll Never Finish Reading

And then *this* came across my Twitter feed (@Nebusj, for the record):

376 more words“The Foundations of Geometry” by David Hilbert https://t.co/bBVG5wpARQ

— Geometry Fact (@GeometryFact) …

#### Quote of the Day

57 more wordsIn dealing with mathematical problems, specialization plays, as I believe, a still more important part than generalization. Perhaps in most cases where we unsuccessfully seek the answer to a question, the cause of the failure lies in the fact that problems simpler and easier than the one in hand have been either incompletely solved, or not solved at all.