Helpful theorem, in math
Latest answer — October 13, 2025
70 Across
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NYT Crossword
This clue's Monday, October 13, 2025 appearance
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The answer to “Helpful theorem, in math” in the New York Times crossword is LEMMA — a 5-letter word. It most recently appeared in the New York Times crossword on October 13, 2025, a Monday puzzle, at 70-Across. Below you'll find why that fill fits, every other answer we've recorded for this clue, and links into the puzzle it came from.
“Helpful theorem, in math” answer
LEMMA (5 letters)
Reveal the solution one letter at a time with the tiles above if you'd rather nudge yourself toward it than see the whole word at once. Just want it outright? The answer is LEMMA.
Why the answer is LEMMA
LEMMA is the 5-letter solution that fits "Helpful theorem, in math" in the NYT Crossword crossword on October 13, 2025 (70-Across). Use the letter tiles above if you'd rather reveal it one letter at a time.
What does LEMMA mean?
Reading the plain dictionary sense of LEMMA is often the fastest way to see why it answers this clue.
(noun)
- a subsidiary or intermediate theorem in an argument or proof
- a heading indicating the subject or argument of a literary composition or annotation
- a word or phrase defined in a dictionary or entered in a word list
When else has “Helpful theorem, in math” appeared?
New York Times reuses clues across dates, sometimes with a different answer depending on the grid. Here's where this exact clue has shown up, and what the answer was each time — handy when you're checking whether today's fill is the only one.
October 13, 2025 (most recent) → LEMMA. We haven't indexed another appearance of this exact clue yet.
Frequently asked questions
What is the answer to “Helpful theorem, in math”?
The answer is LEMMA, a 5-letter word. It most recently appeared in the New York Times crossword on October 13, 2025.
How many letters is the answer to “Helpful theorem, in math”?
5 letters: LEMMA.
When did this clue appear?
Most recently in the New York Times crossword on October 13, 2025 (a Monday puzzle), at 70-Across.
Can “Helpful theorem, in math” have a different answer?
Yes — New York Times sometimes reuses a clue with a different solution to fit the grid. The answers we've recorded for each date it appeared are listed above when available.
Where can I find the rest of this day's NYT Crossword answers?
The full grid for October 13, 2025 is on the NYT Crossword answers page, with every clue and answer from that puzzle.
New York Times Crossword is published by The New York Times; WordHint is an independent site and is not affiliated with or endorsed by the publisher.
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