Barber & Russell Paradoxes (History of Undecidability Part 2) – Computerphile

$20 off your 1st purchase at www.LittleBits.com use the code “COMPUTERPHILE”
The Barber Paradox: Professor Brailsford continues the history of undecidability.

History of Undecidability Part1: http://youtu.be/nsZsd5qtbo4
Turing & The Halting Problem: http://youtu.be/macM_MtS_w4

http://www.facebook.com/computerphile
Tweets by computer_phile

This video was filmed and edited by Sean Riley.

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

Computerphile is a sister project to Brady Haran’s Numberphile. See the full list of Brady’s video projects at: http://bit.ly/bradychannels