reblogarythm: (wednesday)
reblogarythm ([personal profile] reblogarythm) wrote2022-12-22 05:55 am
Entry tags:

What I saw on the web on 2022.12.21


  1. Free Idempotent Rigs and Monoids
    by John Carlos Baez
    https://johncarlosbaez.wordpress.com/2022/12/21/free-idempotent-rigs-and-monoids/
    a fun little algebraic question
    via rss

  2. A Non-constructive Proof of the Four Colour Theorem.
    by D. M. Jackson and L. B. Richmond
    https://arxiv.org/pdf/2212.09835.pdf
    not yet peer reviewed, and i'm neither a graph theorist nor a generatingfunctionologist, so i can't tell if it's valid, but if it is, this is huge
    via reddit

  3. Is Cb the same note as B?
    by Adam Neely
    https://www.youtube.com/watch?v=SZftrA-aCa4
    i'd say no, but i'm a just intonation bigot
    via rss

  4. Track post-conference COVID infections
    by James Kirchner
    https://www.nature.com/articles/d41586-022-04469-8
    amazingly, being in a room with a bunch of people during an ærosol-transmitted pandemic can be hazardous to your health! and there's no covid umbrella over the cafeteria table?!?
    via FB