A level Maths Set Notation

Question	Answer
\[\in\]	is an element of
\[\notin\]	is not an element of
⊆	is a subset of
⊂	is a proper subset of
{\(x_1\), \(x_2\), ...}	the set with elements \(x_1\), \(x_2\), ...
{\(x\) : ...}	the set of all \(x\) such that
\(n\) (\(A\))	the number of elements in set \(A\)
\[\emptyset\]	the empty set
ε	the universal set
\[A^ ′ \]	the complement of the set \(A\)
\[N\]	the set of natural numbers, {1, 2, 3, ...}
\[Z\]	the set of integers {0,\(\pm1\), \(\pm2\), \(\pm3\)...}
\[Z^+\]	the set of positive integers, {1,2,3, ... }
\[Z^+_0\]	the set of non-negative integers, {0, 1, 2, 3, …}
\[R\]	the set of real numbers
\[Q\]	the set of rational numbers, Image: b82b5f06-9d1d-4269-a6b8-a1e79dffa631 (image/jpg)
\[\cup\]	union
\[\cap\]	intersection
(\(x\), \(y\))	the ordered pair \(x\), \(y\)
[\(a\), \(b\)]	the closed interval {\(x\)\(\in\)\(R\) : \(a\)\(\leq\)\(x\)\(\leq\)\(b\)}
[\(a\), \(b\))	the interval {\(x\)\(\in\)\(R\) : \(a\)\(\leq\)\(x\)<\(b\)}
(\(a\), \(b\)]	the closed interval {\(x\)\(\in\)\(R\) : \(a\)<\(x\)\(\leq\)\(b\)}
(\(a\), \(b\))	the open interval {\(x\)\(\in\)\(R\) : \(a\)<\(x\)<\(b\)}

Resource summary

	Created by Andreas Spitz almost 8 years ago