Transcription of Chapter 3: Logic
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Chapter 3: Logic Diana Pell Section : Statements and Quantifiers A statement is a declarative sentence that is either true or false, but not both. Exercise 1 Decide which of the following are statements and which are not. a) Most scientists agree that global warming is a threat to the environment. b) Is that your laptop? c) Watching reality shows turns your brain to mush. A compound statement is a statement formed by joining two or more simple statements with a connective . There are four basic connectives used in Logic : and (the conjunction ), or ( disjunction ), if .. then ( conditional ), and if and only if ( biconditional ). Exercise 2 Classify each statement as simple or compound.
plan to buy either a hybrid or a motorcycle. Quantifiedstatements involve terms such as all, each, every, no, none, some, there exists, and at least one. The firstfive (all, each, every, no, ... Miami Hurricane fans are also Miami Dolphin fans. Negation: No people who are Miami Hurricane fans are also Miami Dolphin fans. c) There is at least ...
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