Mathematics Facts
Proofs and numbers that stay true no matter what the rest of this catalog turns out to say.
13 cryptograms, each one a fact written for this site rather than a sentence taken from a book. All of them cited to Wolfram MathWorld.
How they are kept honest
Every claim names where it came from, and every source was read on the day it was cited, between 2026-08-27 and 2026-08-27. None of these claims can go out of date, which is why they were chosen.
- Wolfram MathWorld13
How hard they are
2 easy, 8 medium and 3 hard, graded by the model described in our guide to solving cryptograms.
They average 74.7 letters over 19.6 distinct ones, with 3.8 letters appearing exactly once.
Every one of them
Each has a page of its own naming its source, and its answer on a separate page so you will not run into it by accident.
- Wolfram MathWorldmedium, 76 letters
- Wolfram MathWorldmedium, 77 letters
- Wolfram MathWorldhard, 75 letters
- Wolfram MathWorldmedium, 72 letters
- Wolfram MathWorldhard, 65 letters
- Wolfram MathWorldmedium, 75 letters
- Wolfram MathWorldmedium, 79 letters
- Wolfram MathWorldmedium, 81 letters
- Wolfram MathWorldhard, 79 letters
- Wolfram MathWorldmedium, 74 letters
- Wolfram MathWorldmedium, 70 letters
- Wolfram MathWorldeasy, 71 letters
- Wolfram MathWorldeasy, 77 letters