Theorem of the Day has a 'new acquisition': The Change of Variables Theorem

Theorem of the Day has a 'new acquisition': Praeger's Theorem on Bounded Movement, marking the occasion of Cheryl Praeger's 60th birthday conference in Perth this coming week

The 2009 calendar "12 Theorems by Women Mathematicians" is now reduced in price to £10 + postage and packing. I will be selling them at that price tomorrow at the Open University Winter Combinatorics Meeting, Milton-Keynes

Theorem of the Day has a 'new acquisition': Theorems of Euler and Rényi on 'e'

A corrected version of Theorem no. 29, Gauss's Law of Quadratic Reciprocity, has been posted. In stating the Law its dependence on the second variable q was ommitted (thanks to John Drost for pointing this out to me).

Theorem of the Day has a 'new acquisition': Wallis's Theorem

Theorem of the Day now has an FAQ page.

Theorem of the Day has a 'new acquisition': Vaughan Pratt's Theorem

Theorem of the Day has a 'new acquisition': Strassen's Matrix Theorem

Theorem of the Day has a 'new acquisition': a Theorem on Rectangular Tensegrities

Theorem of the Day has an embryonic international listing of public events on mathematics to which everyone is welcome to submit items

Theorem of the Day has a 'new acquisition': the Piff-Welsh Theorem

Theorem of the Day has two 'new acquisitions': Sylvester's Law of Inertia and The Robinson-Schensted-Knuth Correspondence

Theorem of the Day has a 'new acquisition': Lieb's Square Ice Theorem

Theorem of the Day has a 'new acquisition': The Contraction Mapping Theorem

Theorem no. 70, on vertex-degree colourability of graphs, has been updated to reflect the striking reduction in the upper bound recently proved by Kalkowski, Karonski and Pfender

Theorem of the Day has a 'new acquisition': The Panarboreal Formula

Theorem of the Day has a 'new acquisition': The Sophomore's Dream

Theorem of the Day has a 'new acquisition': A Theorem of Schur on Real-Rootedness

Theorem of the Day has a 'new acquisition': Euclid's Prism