Re. Puzzles (16) by John Baez: I'm having trouble seeing how there can be a natural transformation that's not an isomorphism for Sophie's example. Since \(C\) has just 1 object, a transformation \(F \rightarrow G\) consists of just one map \(F(\text…
I haven’t yet read David Ellerman’s article, but I wonder if the non-crossing partitions have a special logical significance? Unlike regular partitions and like subsets, they are self-dual as a lattice.
Hello and welcome to the course. I’m another student and I also have a young child (almost 4 years old). It’s really great you are looking at category theory for novel ways to teach your kids. I think young kids have a lot more capacity for understa…
Thanks a lot for your reply (and sorry for my replying late- I forgot to switch email notifications on).
My current aim is to get a grasp of what TQFTs are all about as very many of my favourite topics seem to converge there. My background is reall…