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Introduction to M-theory
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Journal of Combinatorial Theory
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Subjective theory of value
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A Theory of Justice
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Journal of Approximation Theory
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IEEE Transactions on Information Theory
Demand-pull theory
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List of set theory topics
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Theory & Psychology
Simulation theory of empathy
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Journal of Number Theory
Semantic theory of truth
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Music Theory Spectrum
Double-aspect theory
Freud's seduction theory
Kripke–Platek set theory