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B
Basic examples of groups
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Existence proofs
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How to find groups with given properties
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I need to find a real number with a certain property
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Making one mathematical object out of another
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Littlewood-Paley heuristic for derivative
Littlewood-Paley heuristic
Geometric view of Hölder's inequality
Diagonal arguments
Finding an interval for rational numbers with a high denominator
Try to prove a stronger result
Use self-similarity to get a limit from an inferior or superior limit.
Prove a consequence first
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