An amazing friend of mine is egging me on to study point-free topology. Some call it “pointless” topology. Of course, that’s a ready-made joke, and I couldn’t help but follow suit. So, the blog is called “sem pra quê” — literally, “without a what for”. Or, more naturally, “without a purpose”.
My name is André Caldas. I am a math professor at the University of Brasília. In this blog, I’ll share some thoughts as I learn point-free topology. What for?… I don’t really know! :-)