Hybrid talk (please see abstract for link) Note: different room, MR20 this time
A presentation of my idiosyncratic journey to Lean, which includes:
back-and-forths within modal logic and information distance measures;
a paper that was formalized before it was published;
financial math and an unexpected sponsor; and
an effort to formalize automatic complexity, the number of states of a smallest finite automaton accepting only one particular word of a given length.