∎ End of proof
∎ is the end of proof, Unicode U+220E, from the maths symbols. Copy and paste it, or type it with its HTML or CSS code.
∎
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About it
- Name: End of proof
- Group: Maths
- Unicode: U+220E
- HTML:
∎or∎ - CSS:
content: "\220E" - JavaScript:
\u220E
It is plain text, so it pastes into any app, chat, document or social post, and shows in whatever font is around it.