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Jul 13, 2016 at 13:23 comment added Yuval Filmus @Vincent It's encoded in binary (more accurately, take the $|x|$'th string in non-decreasing order of length).
Jul 13, 2016 at 13:20 comment added Vincent yes that is what confuses me. If $|x|$ is the length of some string, then $|x|$ is an integer, so how can it be an element of $\Lambda$?
Jul 13, 2016 at 13:14 comment added Yuval Filmus @Vincent Here $x$ is a string rather than an integer, and $|x|$ is its length.
Jul 13, 2016 at 11:49 comment added Vincent Just to be sure: do I understand correctly that $|x|$ is the length of $x$ written in unary?
Jan 30, 2013 at 1:37 comment added Tsuyoshi Ito Essentially the same transformation is used in Book 1974 to show that E≠NE if and only if NP∖P contains a tally language.
Oct 7, 2010 at 8:40 comment added Dai Le Nice answer Yuval!
Oct 7, 2010 at 4:22 vote accept Kaveh
Oct 6, 2010 at 21:47 history answered Yuval Filmus CC BY-SA 2.5