I can't decide in which direction to close as a duplicate: math.stackexchange.com/questions/159720/… versus math.stackexchange.com/questions/79991/solving-tn-2tn-2n-lg-n

Maybe they should be merged. But annoyingly, the notation is $\log$ in one question and $\lg$ in the other.

@FamousBlueRaincoat Also, this one is a duplicate of those two: math.stackexchange.com/q/193053/147263

@FamousBlueRaincoat Or maybe they should all be closed as a duplicate of math.stackexchange.com/questions/116489/…

Here is one more copy of T(n)=2T(n/2)+n\log n: math.stackexchange.com/questions/990698/…

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delete math.stackexchange.com/questions/681982/…

(A useless accepted answer prevents auto-deletion)

delete math.stackexchange.com/questions/749896/… an epitome of too localized

close How do people who study intensely abstract mathematics “imagine” or understand the concepts they are studying or being taught?

Completely opinion-based, the accepted answer is a joke...

@FamousBlueRaincoat This one seems OK as a duplicate target, but I think merging may be the better option here. The $\log$ vs. $\lg$ difference isn't much of a big deal (I don't think it would lead to any confusion)

(PS: I posted the above close because it's already been closed/reopened once)

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