Computerphile | The Hardest Problem in Type Theory - Computerphile @Computerphile | Uploaded 3 years ago | Updated 6 hours ago
Equality sounds a straightforward idea, but there are subtle problems in theoretical computer science. Professor Thorsten Altenkirch explains how his late friend Martin Hofmann solved one of the biggest problems.

More of Thorsten on Type Theory: bit.ly/C_Thor_playlist

Thorsten's paper dedicated to Martin: bit.ly/C_Thor_Paper

facebook.com/computerphile
twitter.com/computer_phile

This video was filmed and edited by Sean Riley.

Computer Science at the University of Nottingham: bit.ly/nottscomputer

Computerphile is a sister project to Brady Haran's Numberphile. More at http://www.bradyharan.com