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for Element Membership

A relation between an element and a set, indicating that the element belongs to the set

Syntax Forms

Typst $x in A$
LaTeX x \in A

Semantic Information

Also Known As
  • • belongs to
  • • is in
  • • membership
  • • element of
Categories
set theory relations membership

Academic Usage

Introduction to Set Theory

Karel Hrbacek, Thomas Jech • 1999

Context: Fundamental set relation, first axiom of set theory

Referenced on page 12

Primary Definition