How should the last name of set theorist Ken Kunen be pronounced? I have heard both koo-nen and kyoo-nen from other people. Probably the best answer would be to say how he himself pronounces it, but ...
How would one pronounce an expression involving a set symmetric difference, such as $A\triangle B$? Would that be read "A symmetric difference B?" Or perhaps something like "A xor B?" This came up ...
If I am talking about sets $G$ and $H$ and I want to say in words that $G\subset H$, I, like everyone else, will say that $G$ is contained in $H$, or that $H$ contains $G$. But if I am talking about ...