# Textbook Notes for Computer Science at North Carolina State University (NCSU)

NCSUCSC 226Tiffany BarnesSpring

## CSC 226 Chapter Notes - Chapter 1.1: Automated Reasoning, Truth Table

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Proposition: a statement that is either true or false: example propositions: There are an infinite number of prime numbers (true) The declaration of in
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NCSUCSC 226Tiffany BarnesSpring

## CSC 226 Chapter 1.2: CSC226 Zybooks 1.2 Notes (Evaluating Compound Propositions)

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In the same way that normal mathematical operations have an order of operations, so too do the operations within compound propositions: the order is: 3
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NCSUCSC 226Tiffany BarnesSpring

## CSC 226 Chapter Notes - Chapter 1.3: Conditional Sentence, Truth Table, Contraposition

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Conditional propositions: conditional operation: a special operation denoted with the symbol , conditional proposition: a compound proposition that use
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NCSUCSC 226Tiffany BarnesSpring

## CSC 226 Chapter Notes - Chapter 2: Digital Object Identifier, Rational Number, Contraposition

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NCSUCSC 226Tiffany BarnesSpring

## CSC 226 Chapter Notes - Chapter 1.4: Logical Equivalence

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Tautology: a compound proposition that is always true, regardless of the truth values of the individual propositions within it: example: p(cid:1166) p
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