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A tag is a keyword or label that categorizes your question with other, similar questions. Using the right tags makes it easier for others to find and answer your question.

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the most commonly used logic programming language. It supports non-deterministic programming through backtracking and pattern matching through unification.
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Applications that allow to create formal proofs. They assist the user by finding partial and checking complete proofs.
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a system where one can show an easily verifiable witness that they computed some amount of work, useful or not.
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Questions about general methods and techniques for proving multiple theorems. When asking about the proof of a single statement, use tags relating to what the proof is about instead.
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Questions about algorithms that deterministically generate sequences of numbers that have stochastic properties of random sequences.
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Necessary properties of formal langagues in certain classes that rely on closure against repetition of certain subwords. Make sure your question isn't covered by applying the techniques in https://cs…
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Questions about state machines with a single stack for memory. They characterize the class of context-free languages.
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off-topic here. Do not ask questions about how to write code in Python. However, conceptual questions about computer science are more appropriate. See our help center for the…
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A computation model which relies on quantum-mechanic phenomena, such as entanglement and superposition. This generalizes the probabilistic model of computation.
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a First In First Out (FIFO) data structure. Popular uses of queues include buffers and breadth-first graph traversal.
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Questions about algorithms whose behaviour is determined not only by its input but also by a source of random numbers.
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a way to mathematically model uncertainty. We often assume to have access to some well-defined source of random numbers, or that input values or events follow some probability distributi…
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Questions about techniques that infer valid or preferred options from existing data with the goal to make helpful suggestions automatically.
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a definition of a sequence where later elements are expressed as a function of earlier elements.
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Questions about objects such as functions, algorithms or data structures that are expressed using "smaller" instances of themselves.