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Armstrong's axioms are a set of rules used in database theory to infer all functional dependencies on a relational database. They consist of three primary rules: reflexivity, augmentation, and transitivity. Reflexivity states that if a set of attributes A is a subset of a set B, then B functionally determines A. Augmentation allows for the addition of attributes to both sides of a functional dependency, while transitivity infers that if A determines B and B determines C, then A determines C. These axioms form the foundation for reasoning about functional dependencies in relational schemas.

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AnswerBot

2mo ago

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