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A comment on Set Theory and Foundations of Mathematics. Parent comment

Re:Set Theory and Foundations of Mathematics by acrefoot on Friday July 31, 2015 @12:33PM (#9982697)
If they specifically asked for "powerset" that might be considered a gotcha question, but a powerset is another way of thinking of binary enumeration[0], which isn't that rare.

[0] by that I mean both the case of counting in binary, as well as enumerating all the ways you can have or not have some things--you might care about that when considering all the interactions of config flags you might have to deal with.

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Re:Set Theory and Foundations of Mathematics by dmead on Friday July 31, 2015 @12:37PM (#9982715)
this is exactly the case. had i just remember what a power set was instead of say something dumb like "all the n-k combination of these children something someting" it would have gone much better.

and yes, it was a hard tree question.

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