intersection

Usage

intersection(x,y)
intersection!(x,y)

Signature

intersection:

(%, %) $\to$ %

Parameter	Type	Description
x,y	%	sets

Returns

Return $x \cap y = \{ a \mbox{ such that }a \in x \mbox{ and } a \in y\}$.

Remarks

intersection! does not make a copy of $x$, which is therefore modified after the call. It is unsafe to use the variable $x$ after the call, unless it has been assigned to the result of the call, as in x := intersection!(x, y).