AltKeyCodes

N-ary Union Symbol

There is no legacy Windows Alt code for N-ary Union because it is not in either the OEM code page 437 or Windows-1252 tables. The Unicode codepoint is U+22C3, which you can use as ⋃ in HTML, \22C3 in CSS, or type with Alt+8899 on Windows (BMP only). If your keyboard has no numeric keypad, use the Character Viewer, the HTML entity, or copy the character directly. N-ary Union is outside both legacy code pages, which is why U+22C3 is the identifier that works across Word, HTML, CSS, Python and JavaScript. N-ary Union has no named HTML entity, so use the numeric escape ⋃ or the hex escape ⋃.

Codes for this symbol

Copy any value by clicking it.
MethodValue
Alt + decimal
Alt + X hex
HTML decimal
HTML hex
CSS escape
Python escape
JavaScript escape
UTF-8 bytes
Unicode codepoint
Unicode block
Unicode category

Not available for this symbol: legacy Windows Alt code, macOS Option shortcut, named HTML entity.

How to type n-ary union on Windows

  1. Turn Num Lock on so the numeric keypad is active.
  2. Hold the left Alt key.
  3. Type 8 8 9 9 on the numeric keypad for the decimal codepoint 8899.
  4. Release Alt. The N-ary Union character (⋃) appears.

If your keyboard has no numeric keypad, see how to type symbols without a numpad.

How to type n-ary union on macOS

There is no direct Option shortcut for N-ary Union. Open the Character Viewer with ⌃⌘Space, search for "N-Ary Union" and click the character to insert it.

How to use n-ary union in code

  • HTML: or
  • CSS: content:"\22C3"; ()
  • Python: \u22C3 or chr(0x22C3)
  • JavaScript: \u22C3 or String.fromCodePoint(0x22C3)
  • JSON: "\u22C3"
Plus-minus SignAlt+241
Division SignAlt+246
Square RootAlt+251
Less-than Or Equal ToAlt+243
Greater-than Or Equal ToAlt+242
Multiplication SignAlt+0215
InfinityAlt+236
Almost Equal ToAlt+247
Identical ToAlt+240
N-ary SummationAlt+8721
Not Equal ToAlt+8800
Partial DifferentialAlt+8706
Empty SetAlt+8709
Minus SignAlt+8722
NablaAlt+8711
Element OfAlt+8712
IntegralAlt+8747
Long Rightwards ArrowAlt+10230

Frequently asked questions

Is there an Alt code for ⋃?

No legacy Alt code exists for N-ary Union because it is not in code page 437 or Windows-1252. Use the Unicode codepoint U+22C3 in HTML, CSS or the Character Viewer instead.

How do I type ⋃ without a numpad?

Use the Windows Character Viewer (Win+.), the macOS Character Viewer (⌃⌘Space), an HTML entity such as ⋃, or copy the character directly from this page.

Why does Alt+8899 not work?

Alt+8899 only works on a keyboard with a physical numeric keypad. It also requires the application to accept the numeric-keypad input path. Laptops without a numpad need an alternative method.

What is the Unicode for N-ary Union?

The Unicode codepoint for N-ary Union is U+22C3. You can use this value in HTML as ⋃, in CSS as \22C3, and in Word with Alt+X.

How do I type ⋃ on a Mac?

Open the Character Viewer with ⌃⌘Space and search for the character name or U+22C3, then click it.

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