Sets Today, I'm going to talk about one of the most monumental result in set theory-- that some infinities are larger than some infinities. This statement is ambiguous of course, in what sense are we comparing

I'm going to start a maths degree at Oxford next week and I thought a good project for the year would be to write about an interesting bit of maths that I had found that week. How to go about answering

There has been an on-going controversy raging on in cyberspace concerning a seemingly straight-forward arithmetic problem of multiplication by repeated addition. In Singapore, this idea would be taught