Rare card
Filter (mathematics)
- Value
- 50 W
- Attack
- 271
- Defence
- 217
- Players
- 0
In mathematics, a filter or order filter is a special subset of a partially ordered set (poset), describing "large" or "eventual" elements. Filters appear in order and lattice theory, but also topology, whence they originate. The notion dual to a filter is an order ideal.
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