Logic For Dummies
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Quantifier logic encompasses the rules of sentential logic and expands upon them so that you can write whole statements with logic symbols. Those symbols come into play when you work with identities, or interchangeable constants. The rules of identity are shown here:

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And, when talking about identities, you can quantify statements, using the rules in the following table:

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Mark Zegarelli is a professional writer with degrees in both English and Math from Rutgers University. He has earned his living for many years writing vast quantities of logic puzzles, a hefty chunk of software documentation, and the occasional book or film review. Along the way, he’s also paid a few bills doing housecleaning, decorative painting, and (for ten hours) retail sales. He likes writing best, though.

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