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Equivalence class
Definition
| $X$ |
| $x\in X$ |
| $\sim\in\text{Equiv}(X) $ |
| $ y\in [x]_\sim $ |
| $y\sim x$ |
Ramifications
Discussion
For some combinatorics on the number of possible equivalence classes, see Bell number (Wikipedia).
Reference
Wikipedia: Equivalence class
Context
Requirements
