| Answer | Crossword Clue |
|---|---|
| QED | Abbreviation in a proof |
| QED | Proof-ending abbreviation |
| ERGO | Word in a proof |
| QED | Conclusion, in a proof |
| TYPO | Mistake in a proof |
| TYPO | Goof in a proof |
| REEDIT | Read proof, in a way. |
| ERAT | Word in a proof ending |
| TYPO | Something wrong in a proof |
| LEMMA | Subsidiary proposition in a proof |
| THEOREM | Statement backed by a proof, in math |
| TYPO | It may be found in a proof |
| STETS | Marks on a proof to leave in |
