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- 18:40, 19 May 2013 diff hist +96 Futurama theorem →Proof
- 18:35, 19 May 2013 diff hist −689 Futurama theorem Undo revision 121918 by 216.26.124.134 (talk) Sorry, didn't realize that was a transcription of a blackboard on the show, rather than someone writing out a proof.
- 18:31, 19 May 2013 diff hist +689 Futurama theorem →Proof: put into better mathematical notation, and spelled out the step from a single cycle to an arbitrary permutation in more detail. Also, the proof is improved by fixing a single σ, rather than describing a family of σ which work.