Home | Preferences | Help | User Guides | Credits | Download | Forum

thesaurus.maths.org

alphabetical | galleries | topics | For Quick Reference: drag this m-button to your links toolbar

In  |  Member of   (English)

Search for " In " OR " Member of " in NRICH |  PLUS |  maths.org |  Google

Definition (advanced level)

The symbol ∈ means that a given element is a member of a particular set; it is in that set. For example, a ∈ A means that element a is in set A.

Funded by: EU Socrates Minerva, HeyMath!, Cambridge University Press
Copyright: 2001-2004 University of Cambridge and Partners