As computers are used more and more to confirm proofs, is it time to take computer science's contribution to mathematics further? Dr Thorsten Altenkirch discusses Type Theory vs Set Theory. A Longer version of this interview can be found here: EXTRA BITS: This video was filmed and edited by Sean Riley. Computer Science at the University of Nottingham: Computerphile is a sister project to Brady Haran's Numberphile. More at