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1.John H. Conway – Is the Collatz conjecture unprovable? (vimeo.com)
2 points by vampirebat on Oct 31, 2014 | past | 1 comment
2.Douglas Hofstadter-Intertwined Patterns of Integers&Patterns OfThought Processes (vimeo.com)
2 points by vampirebat on Oct 31, 2014 | past | 1 comment

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