Talk:Sokolov Paintings/@comment-27038417-20151007033557/@comment-23.115.170.221-20160511070714

The Empress' painting is called 'Empty Set,' not 'seat.'

The empty set is a set of numbers that doesn't actually contain any numbers. Because any two sets are equal if they contain the same elements, there can only be one set which doesn't contain any at all.

I'm guessing that this is some kind of reference to just how unique and special The Empress was; there was no one else truly like her, and with her gone, there's an irrevocably empty set remaining.