Theoremcore
Bouton's theorem
Theorem stating that a Nim position is losing for the player to move exactly when the xor of the pile sizes is zero.
Theorem stating that a Nim position is losing for the player to move exactly when the xor of the pile sizes is zero.
About this page
The build computes these levels from the evidence in the repository. Each row says what the next level needs. Read what the levels mean.
| Ladder | Level | What the next level needs |
|---|---|---|
| Human proof | H0 no proof |
|
| Lean | L0 no Lean part |
|
| Visual | V0 none |
|
| Writing | W0 stub |
|
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