96 b Logic is used in the programming of the apps we use on our smartphones. Delirisfilms/123RF 3 Sections 3. 1 Statements and Logical Connectives 3. 2 Truth Tables for Negation, Conjunction, and Disjunction 3. 3 Truth Tables for the Conditional and Biconditional 3. 4 Equivalent Statements 3. 5 Symbolic Arguments 3. 6 Euler Diagrams and Syllogistic Arguments 3. 7 Switching Circuits Throughout this chapter we will see how logic can be used to analyze and understand statements we encounter in our everyday lives. Such statements may appear in advertisers’ claims and political statements. Failure to completely understand such statements could cause us to be misled by advertisers or to be uninformed when voting for political candidates. We can also use logic to determine the validity of logical statements that appear in legal documents. Failure to understand legal documents such as car loans, home rental agreements, or credit card statements could lead to making poor financial decisions. In addition to helping us understand statements, studying logic helps us communicate effectively, make more convincing arguments, and develop patterns of reasoning for decision making. Logic is also used in the programming of most electronic devices including smartphones whenever we use an app. Why This Is Important Logic
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