Get your favorite
out-of-print math book back in print!

Pseudoku puzzles that I composed
for the 7th
Gathering for Gardner

A beginner’s guide to forcing
(an improved version of
Forcing for dummies)

*You*
could have invented spectral sequences!
(This supersedes an earlier version of this document;
thanks to Stuart Ambler for catching a typo in
Claim 2 on page 17:
*E*^{1}_{d,2} should be
*E*^{1}_{d+1,2}.)

Are there bugs in the paper
"Strengths and weaknesses of quantum computing" by
Bennett, Bernstein, Brassard, and Vazirani?
(possible errata)

Proof that 1 = 0
(nicer than the standard division-by-zero proofs)

Bill
Gates once published a math paper?!

What is
class field theory?

What is
Polya’s counting theorem?

What are
p-adic numbers?

Why does
no factor of *n*^{2} – 5 end in 3 or 7?

Consistency
is a piddling condition!

You
can’t do that! (Illegal
manipulation of regular expressions)

Tests
for divisibility by seven

Trivial
or non-trivial? (Dinitz conjecture)

**Sci.math.research
archive**

Girls’ Angle:
A Math Club for Girls

The Museum of Mathematics
and the associated
Math Midway

Erik Seligman’s
Math Mutation Podcasts

The Open Problem Garden

My definition
of mathematics as submitted to
Polimetrica

Math Delights

Surviving
Graduate School

General Relativity
Tutorial (John Baez)

Duluth Summer Research
Experience for Undergraduates

Michigan Math
Scholars

Jeff Weeks’s Topology and
Geometry Software

Neil
J. A. Sloane’s On-Line Encyclopedia of Integer Sequences

Inverse Symbolic Calculator

Los Alamos Preprint arXiv
for Mathematics

Linear
Programming FAQ

Travelling
Salesman Problem

TeX Users Group

Electronic
Journal of Combinatorics and World Combinatorics Exchange

Number Theory Web

American Mathematical Society

Mathematical Association of America

National Council of Teachers of
Mathematics

Mathematically
Correct