If is a member of a set , then is said to be an element of , written . If is not an element of , this is written .

The term element also refers to a particular member of a group, or entry in a matrix or unevaluated determinant .

If is a member of a set , then is said to be an element of , written . If is not an element of , this is written .

The term element also refers to a particular member of a group, or entry in a matrix or unevaluated determinant .

Weisstein, Eric W. "Element." From *MathWorld*--A Wolfram Web Resource. https://mathworld.wolfram.com/Element.html