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Let R be the schema of a relation R, and let A, B C R. What is the condition such that TA (OF (R)) =
Let R be the schema of a relation R, and let A, B C R. What is the condition such that TA (OF (R)) = mA (OF (TAUB (R))) holds where Fis a correct predicate on R? You can express the condition colloquially or in mathematical terms
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