WikiCards
Play on iPhone nowFree in Safari. Add it to your Home Screen.Play
WikiCards · Card list · Science cards · Partition of a set
Uncommon card · Science
Partition of a set, an Uncommon card
In mathematics, a partition of a set is a grouping of its elements into non-empty subsets, in such a way that every element is included in exactly one subset.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 59
- DEF
- 38
- Power
- 97
- Wikipedia reads a year
- 49,000
Power 97 (ATK + DEF): stronger than 40 % of WikiCards cards.
Partition of a set quiz: 3 questions
Three questions on the Partition of a set card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
Every ______ relation on a set defines a partition of this set, and every partition defines an equivalence relation.
Answer
equivalence. Every equivalence relation on a set defines a partition of this set, and every partition defines an equivalence relation. From the Partition of a set article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Essays. Essays 62 · Partition of a set 59 · Blue hour 51 · Fordite 48 ATK in WikiCards.
In a duel, each round asks a question like these about the opposing card, with 15 seconds to answer.
The facts on the card
The card carries these facts from its Wikipedia article.
- Every equivalence relation on a set defines a partition of this set, and every partition defines an equivalence relation.
- A set equipped with an equivalence relation or a partition is sometimes called a setoid, typically in type theory and proof theory.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Partition of a set article was read about 49,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 59 and blocks with 38: each hit it takes is cut by 15 %.
How to get Partition of a set
Open packs. Each pack holds five cards drawn from real Wikipedia articles, the rarest last, and the fifth card is always Rare or better. The odds are shown in the game. A free pack arrives every hour and two can wait, and the Coins you win in duels buy more packs.
More Science cards
Cards close in power
The cards just above and just below Partition of a set in the power ranking, all domains together.
- Royler GracieUncommon · Arts · ATK 60 DEF 37
- Antonio CarluccioUncommon · Society · ATK 60 DEF 37
- JanSportUncommon · Society · ATK 55 DEF 42
- Extreme value theoremUncommon · Science · ATK 66 DEF 31
- Horse racing in JapanUncommon · Society · ATK 63 DEF 34
- Imi LichtenfeldUncommon · Society · ATK 58 DEF 39
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
- Science cards
- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, Partition of a set (revision), CC BY-SA 4.0. Photo : scanned by User:Nickpo, Public domain, Wikimedia Commons.
