Mathematicians Of The Day

4th July

On this day in 1862, Charles Dodgson took Alice Liddell and her sisters rowing on the Isis at Oxford and told them a story which later became Alice in Wonderland.

Click on for a poster.

Quotation of the day

From Marshall Hall Jr
[from a foonote in Theory of Groups ]
We have used the term subinvariant subgroup as the term subnormal subgroup may be unnecessarily distracting.