Set theory Marley
Jane Walker from ICMS sent me this photo that she took at the Theory of Infinity Conference (also known as the Third European Set Theory Conference). The concept of infinity raises many difficult questions in Set Theory, many of which were written about by Georg Cantor and Bertrand Russell, and they are still being discussed today. The little dog in the picture is called Marley, and his photo is being posted around the world in order to raise money for the Dog’s Trust. He has a blog and can be followed on Twitter as #flatmarley.