Lecture Notes 2

# Lecture Notes 2 - Predicates and Quantifiers...

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Predicates and Quantifiers 1 of 1 08/27/2003 01:35 PM prev | slides | next Predicates and Quantifiers 1 2 3 4 5 6 7 Predicates and Quantifiers 1 of 1 08/27/2003 01:35 PM Predicates and Quantifiers prev | slides | next To be a proposition a statement must be either true or false . Thus statements like x >0 are not propositions. This is because their truth value cannot be determined unless additional information is specified; in this case the value of x . Statements like x >0 and 3+ x =5 have two parts: a variable (or variables ) and a predicate . We denote these statements P ( x ) where P ( ) is the predicate and x is the variable. Once the variable (or variables) is assigned a value then the truth value of the statement can be determined. 1 2 3 4 5 6 7 Predicates and Quantifiers 1 of 1 08/27/2003 01:35 PM Predicates and Quantifiers prev | slides |

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