LEMMA
| Date | Clue |
|---|---|
| 2025-10-13 | Helpful theorem, in math |
| 2023-01-19 | Step in a mathematical proof |
| 2022-07-26 | Helpful theorem, in math |
| 2021-02-21 | Mathematical proposition |
| 2020-03-21 | Little theorem within a bigger theorem |
| 2016-09-04 | Basic form of a word |
| 2016-07-04 | Helpful theorem, in math |
| 2015-10-11 | Subsidiary proposition |
| 2004-12-29 | Proof part, sometimes |
| 2003-05-30 | Helping theorem |
| 2000-02-21 | Auxiliary proposition, in math |
| 1998-06-16 | Auxiliary proposition |
| 1996-08-30 | Headword |
| 1995-04-08 | Headword |