Jason (jcreed) wrote,

Was reading an old Baez and Dolan paper from '95; the tables on pages 17 and 24 suddenly made the "periodic table" of n-category theory (of which they are depictions, after a fashion) make a little more sense to me. Most of all how as you go down the table, you introduce more and more structure; a binary operation on objects, a symmetry, a braiding, etc. and if you go far enough to the left (collapsing various levels of n-cells to singletons) these operations become identities because the only thing left for these operations to be is the identity.

An interesting related blog post.
Tags: categories, math

  • (no subject)

    Cat vs. Fence. WHO WILL WIN? Cat is very agile, but... In other news, Lulu copy of thesis just arrived today, and it looks great! Score one more…

  • (no subject)

    Ok, kids, if you want to blow $40+shipping on a color* copy of my thesis I'm not stopping you. *The cover is color no matter what, but this version…

  • (no subject)

    Recently constructed things: First attempt at Lulu-ing thesis. I have ordered a copy for myself to make sure it looks ok. Made a song with tom7…

  • Post a new comment


    Anonymous comments are disabled in this journal

    default userpic

    Your reply will be screened

    Your IP address will be recorded 

  • 1 comment