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WikiCards · Card list · Science cards · De Morgan's laws
Uncommon card · Science
De Morgan's laws, an Uncommon card
In propositional logic and Boolean algebra, De Morgan's laws, also known as De Morgan's theorem, are a pair of transformation rules that are both valid rules of inference.
- Rarity
- Uncommon
- Domain
- Science
- ATK
- 68
- DEF
- 48
- Power
- 116
- Wikipedia reads a year
- 170,000
Power 116 (ATK + DEF): stronger than 65 % of WikiCards cards.
De Morgan's laws quiz: 3 questions
Three questions on the De Morgan's laws card, the way WikiCards duels ask them. Pick an answer, the facts are just below.
Find the missing word
They are named after Augustus De Morgan, a 19th-century British ______.
Answer
mathematician. They are named after Augustus De Morgan, a 19th-century British mathematician. From the De Morgan's laws article on Wikipedia.
Which of these cards hits hardest (highest ATK)?
Answer
Cache. Cache 71 · De Morgan's laws 68 · Goblin 65 · Holstein Friesian 62 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.
- They are named after Augustus De Morgan, a 19th-century British mathematician.
- The rules allow the expression of conjunctions and disjunctions purely in terms of each other via negation.
- The rules can be expressed in English as: The negation of "A and B" is the same as "not A or not B".
Why it is Uncommon
Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The De Morgan's laws article was read about 170,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 68 and blocks with 48: each hit it takes is cut by 19 %.
How to get De Morgan's laws
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 De Morgan's laws in the power ranking, all domains together.
- Dead reckoningUncommon · Science · ATK 68 DEF 48
- Holstein FriesianUncommon · Nature · ATK 62 DEF 53
- PeninsulaUncommon · Nature · ATK 61 DEF 55
- Bellis perennisUncommon · Nature · ATK 59 DEF 57
- BingoUncommon · Society · ATK 65 DEF 51
- Asian conical hatUncommon · Society · ATK 61 DEF 55
Card lists
- Wikipedia quizNew questions every day
- All cards from A to ZEvery card, by name
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- Legendary cards
- Tier listS and A tiers by power (ATK + DEF)
Credits
Text : Wikipedia, De Morgan's laws (revision), CC BY-SA 4.0. Photo : Teknad, Public domain, Wikimedia Commons.
