End of Proof
∎
Type it
| Unicode | U+220E | |
|---|---|---|
| LaTeX | \blacksquare | |
| HTML entity | ∎ | |
| Character | ∎ |
Meaning
Marks the end of a proof, taking the place of the older QED. It is also called the tombstone or Halmos symbol, and a hollow square □ is used the same way. Compare with Therefore and Because.
How to read it
… so n is even. ∎
is read “so n is even, end of proof”.