A pretty good lecture on *classifying toposes* and their role in mathematics. Olivia Caramello discusses how toposes came to be studied, how they came to be understood as providing a *semantic core* for a mathematical theory, and how they provide a suitably general context for studying the symmetries (invariants) of a given theory.
https://www.youtube.com/watch?v=8xWZpec9pwM -- Sent from: http://friam.471366.n2.nabble.com/ - .... . -..-. . -. -.. -..-. .. ... -..-. .... . .-. . FRIAM Applied Complexity Group listserv Zoom Fridays 9:30a-12p Mtn GMT-6 bit.ly/virtualfriam un/subscribe http://redfish.com/mailman/listinfo/friam_redfish.com archives: http://friam.471366.n2.nabble.com/ FRIAM-COMIC http://friam-comic.blogspot.com/
