In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Q: Lindstrom's theorem states that first-order logic is the strongest logic having both this property and satisfying the Lowenheim-Skolem property. A method for finding a Hausdorff space with this property containing a given space is named for Stone and Cech. Equicontinuity is the main condition for determining whether a family of functions has this property by the Arzela-Ascoli theorem. Using the axiom of choice, it can be shown that an arbitrary product of spaces with this property has this property, a result known as Tychonoff's theorem. In Euclidean space, being closed and bounded is sufficient to show, according to the Heine-Borel theorem, that a set has this property. For 10 points, identify this property which holds of a set on which every open cover has a finite subcover.

A: Science
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Q: One character in this novel retrieves a cross of cypress and a cross of copper from a drawer. This novel includes a policeman who drinks champagne in the Crystal Palace named Zametov. This novel's epilogue takes place in a prison hospital, where the protagonist ponders the suicide of Svidrigailov. Porfiry Petrovich investigates this novel's protagonist, who is loved by the prostitute Sonia Marmeladov and murders the pawnbroker Alyona Ivanovna. For 10 points, name this novel centering on the murderous Raskolnikov, written by Fyodor Dostoyevsky.

A: Literature
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Q: Landau quantization in two dimensional systems can explain effects due to this entity, which produces a toroidal shape in tokamaks, and is also equal to the curl of the vector potential A. A potential difference is formed when this is applied perpendicularly to the current in the Hall effect, and charge is multiplied by velocity cross this quantity to find the (*) Lorentz force. One can integrate this quantity around a closed loop to find the enclosed current according to Ampere's law, and Gauss's Law states that the net flux of this through a surface is zero. The SI unit of Tesla measures, for ten points, what counterpart to the electric field

A:
Science
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