Contains As Member

A symbol from the Math Symbols collection. Click the symbol or the button below to copy.

Symbol: ∋
Unicode: U+220B
HTML entity: ∋
Category: Math Symbols

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33 of 58 in the math symbols collection

About the contains as member symbol

Identified by the formal name Contains As Member, this mathematical operator is a reversed version of the element-of symbol. It is typically read aloud as contains, such as, or has member. Positioned within the Mathematical Operators block, the sign indicates that a set includes a specific object as one of its elements. The character belongs to the Common script, ensuring it maintains a consistent visual style across different digital fonts and technical documents.

This symbol appears almost exclusively in formal mathematical notation, set theory, and logic. You will find it used in textbooks to define the relationship between a container set and its individual components. It also serves as a shorthand in computer science for defining memberships or during predicate logic proofs. Outside of these academic and technical contexts, the symbol has no widespread use in daily correspondence, social media, or general signage.

How to type Contains As Member

Native keyboard shortcuts for each operating system — derived from the codepoint, so the steps below are always accurate.

Windows

2 options

In Word / Outlook: type 220B then press Alt + X.
Anywhere: press Win + . to open the emoji & symbol picker, then search.

macOS

2 options

Enable “Unicode Hex Input” in System Settings → Keyboard, then hold Option and type 220B.
Or: Control + Command + Space opens the Character Viewer — search by name.