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WikiCards · Card list · Science cards · Topological space
Uncommon card · Science
Topological space, an Uncommon card
In mathematics, a topological space is, roughly speaking, a space in which closeness is defined but cannot necessarily be measured by a numeric distance.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 69
- DEF
- 38
- Power
- 107
- Wikipedia reads a year
- 120,000
Power 107 (ATK + DEF): stronger than 60 % of WikiCards cards.
Topological space quiz: 3 questions
Three questions on the Topological space card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
There are several equivalent definitions of a topology, the most commonly used of which is the ______ through open sets.
Answer
definition. There are several equivalent definitions of a topology, the most commonly used of which is the definition through open sets. From the Topological space article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Topological space. Topological space 69 · Max Schürer 64 · VZLÚ HC-3 61 · Carat 58 ATK in WikiCards.
Which of these Wikipedia articles is read the most in a year?
Answer
Azimuth. Azimuth 190,000 · Topological space 120,000 · VZLÚ HC-3 650 · Max Schürer 270 Wikipedia reads over a year.
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.
- More specifically, a topological space is a set whose elements are called points, along with an additional structure called a topology, which can be defined as a set of neighbourhoods for each point that satisfy some axioms formalizing the concept of closeness.
- There are several equivalent definitions of a topology, the most commonly used of which is the definition through open sets.
- A topological space is the most general type of a mathematical space in which limits, continuity, and connectedness can be defined.
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Topological space article was read about 120,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 69 and blocks with 38: each hit it takes is cut by 15 %.
How to get Topological space
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 Topological space in the power ranking, all domains together.
- AutocannonUncommon · Science · ATK 64 DEF 43
- CheeseburgerUncommon · Society · ATK 62 DEF 45
- CelestaUncommon · Arts · ATK 64 DEF 43
- VanUncommon · Society · ATK 61 DEF 46
- West End of LondonUncommon · Society · ATK 61 DEF 46
- Mobile deviceUncommon · Science · ATK 62 DEF 45
Card lists
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Credits
Text : Wikipedia, Topological space (revision), CC BY-SA 4.0. Photo : Qef, Public domain, Wikimedia Commons.
