N-Ary Intersection Symbol

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

Math Symbols collection

Symbol: ⋂
Unicode: U+22C2
HTML entity: ⋂
Category: Math Symbols

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63 of 96 in the math symbols collection

About the n-ary intersection symbol

In set theory and other branches of mathematics, this character is the standard notation for the intersection of two or more sets, indicating all elements that belong to every set in a given collection. It appears in textbooks, research papers, and formal logic, often with indexed sets written below or above it to specify a family of sets. As a n-ary operator, it functions like a large capital U turned upside down, analogous to how the summation symbol Σ works for addition.

How to type N-Ary Intersection

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 22C2 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 22C2.
Or: Control + Command + Space opens the Character Viewer — search by name.