Logic Code - Chapter Seven Rules of Inference I Rules of...

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Chapter Seven Rules of Inference I Rules of Inference II Rules of Replacement I Rules of Replacement II
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The code of natural deduction The code of natural deduction The rules in natural deduction function like a set of keys to unlock the conclusion encoded in the proofs we examine in chapter seven. The mental skills this requires are very much like those in solving logic puzzles or even Sudoku puzzles. These skills are important in everyday life as well: problem solving, drawing conclusions, ordinal reasoning.
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The symbols of propositional logic The symbols of propositional logic We use symbols in logic for the same reasons we use symbols in other areas of life: they make our reasoning process clearer and simpler to decipher. Ironic really that we use codes to make things easier to decipher! Consider some common symbols we use:
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the word in order for you to understand it. Neither does this one.
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Logic Code - Chapter Seven Rules of Inference I Rules of...

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