Theorem, an Uncommon card

The card carries these facts from its Wikipedia article.

• The proof of a theorem is a logical argument that uses the inference rules of a deductive system to establish that the theorem is a logical consequence of the axioms and previously proved theorems.
• In mainstream mathematics, the axioms and the inference rules are commonly left implicit, and, in this case, they are almost always those of Zermelo–Fraenkel set theory with the axiom of choice, or of a less powerful theory, such as Peano arithmetic.
• Generally, an assertion that is explicitly called a theorem is a proved result that is not an immediate consequence of other known theorems.

Rarity in WikiCards follows a year of Wikipedia page views: the most read articles become Epic and Legendary cards. The Theorem article was read about 89,000 times in a year. ATK comes from the length of the article and DEF from its quality, so this card hits with 72 and blocks with 64: each hit it takes is cut by 26 %.

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.

The cards just above and just below Theorem in the power ranking, all domains together.