Below is the complete list of Windows ALT codes for Math Intersection & Union Signs, their corresponding HTML entity numeric character references, and when available, their corresponding HTML entity named character references, and Unicode code points. If you are new to ALT codes and need detailed instructions on how to use ALT codes in your Microsoft Office documents such as Word, Excel & PowerPoint or applicable Microsoft Windows programs & applications, please read How to Use ALT Codes to Enter Special Characters. If you want, instead of using ALT codes, you can also just quickly tap or click any intersection or union sign in the list below to copy and paste it into your document. (Note: Some symbols might not display correctly due to device or platform limitations in character/text representation.)
| Symbol | ALT Code | ALT X Code | Symbol Name | HTML Entity DEC | HTML Entity HEX | HTML Entity Named | Unicode Code Point |
|---|---|---|---|---|---|---|---|
| ⩀ | ALT 10816 | 2A40 ALT X | Intersection with dot | ⩀ | ⩀ | ⩀ | U+2A40 |
| ⩁ | ALT 10817 | 2A41 ALT X | Union with minus sign, z notation bag subtraction | ⩁ | ⩁ | U+2A41 | |
| ⩂ | ALT 10818 | 2A42 ALT X | Union with overbar | ⩂ | ⩂ | ⩂ | U+2A42 |
| ⩃ | ALT 10819 | 2A43 ALT X | Intersection with overbar | ⩃ | ⩃ | ⩃ | U+2A43 |
| ⩄ | ALT 10820 | 2A44 ALT X | Intersection with logical and | ⩄ | ⩄ | ⩄ | U+2A44 |
| ⩅ | ALT 10821 | 2A45 ALT X | Union with logical or | ⩅ | ⩅ | ⩅ | U+2A45 |
| ⩆ | ALT 10822 | 2A46 ALT X | Union above intersection | ⩆ | ⩆ | ⩆ | U+2A46 |
| ⩇ | ALT 10823 | 2A47 ALT X | Intersection above union | ⩇ | ⩇ | ⩇ | U+2A47 |
| ⩈ | ALT 10824 | 2A48 ALT X | Union above bar above intersection | ⩈ | ⩈ | ⩈ | U+2A48 |
| ⩉ | ALT 10825 | 2A49 ALT X | Intersection above bar above union | ⩉ | ⩉ | ⩉ | U+2A49 |
| ⩊ | ALT 10826 | 2A4A ALT X | Union beside and joined with union | ⩊ | ⩊ | ⩊ | U+2A4A |
| ⩋ | ALT 10827 | 2A4B ALT X | Intersection beside and joined with intersection | ⩋ | ⩋ | ⩋ | U+2A4B |
| ⩌ | ALT 10828 | 2A4C ALT X | Closed union with serifs | ⩌ | ⩌ | ⩌ | U+2A4C |
| ⩍ | ALT 10829 | 2A4D ALT X | Closed intersection with serifs | ⩍ | ⩍ | ⩍ | U+2A4D |
| ⩎ | ALT 10830 | 2A4E ALT X | Double square intersection | ⩎ | ⩎ | U+2A4E | |
| ⩏ | ALT 10831 | 2A4F ALT X | Double square union | ⩏ | ⩏ | U+2A4F | |
| ⩐ | ALT 10832 | 2A50 ALT X | Closed union with serifs and smash product | ⩐ | ⩐ | ⩐ | U+2A50 |
For more math signs and symbols, see ALT Codes for Math Symbols. For the the complete list of the first 256 Windows ALT Codes, visit Windows ALT Codes for Special Characters & Symbols.
