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One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Answer to place stones and capture territory.
Outrun the snow together.
Earn blasts, then hunt the other team.
Answer to earn energy, then climb.
The class blasts through walls together.
Bid on mystery lots. Most money wins.
Sell tours. Nice, standard, or a total scam.
Answer, restock, and serve the rush.
More correct answers pulls the rope your way.
Answer, then shoot down the alien wave.
Answer, then tap to leap the frozen ridge.
What is 2+2?
What is the capital of France?
True or False: The sky is blue
在 propositional logic 中，一个 argument（论证）指的是什么？
Argument 中，除了最后一个 proposition 以外的所有命题称为什么？
Argument 的最后一个 statement 叫做什么？
Premises 是 p1, p2, …, pn，conclusion 是 q。Argument is valid（有效）等价于下列哪一项？
下面哪一句最准确地描述 valid argument（有效论证）？
什么是 rules of inference（推理规则）？
每一条 rule of inference 都对应一个什么类型的 formula？
Premises 是 p 和 p → q，要检验能否 valid 地推出 q，应该检验哪个 formula 是 tautology？
Crack the passcode before the zombies get in.
Answer, then swat bugs for bonus points.
Race through questions at your own speed.
Same question on every screen. Fastest wins.
Pick a tile, answer, hit bonuses and steals.
一年级科学：基本立体
18 questions
