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Chapter 7

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Database Systems {week 03b}

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Chapter 6

Chapter 6. Francisco Tomasino Andy Lachler. Properties of Inequality. If a>b and c?d , then a+C > B+D If a>b and c>0, then ac> bc and a/c > b/c If a>b and c>0, then ac< bc and a/c <b/c If a>b and b>c , then a>c If a= b+c and c>0, then a>b. Example:.

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