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Found 3 free book(s)
2.1 Logical Equivalence and Truth Tables
www.usna.edutruth values of the individual statements substituted for its statement variables. Example: p_˘p. A contradiction is a statement form that is always false regardless of the truth values of the individual statements substituted for its statement variables. Example: p^˘p. 2.1 Logical Equivalence and Truth Tables 6 / 9
Section 1. Statements and Truth Tables 1.1 Simple Statements
www.math.utah.eduDefinition 2.1: Suppose S and T are two compound statements formed from the simple statements P, Q. The statements S and T are said to be equivalent if their truth values are the same for all possible combinations of truth values of P, Q. In that case we write, S ≡ T. Looking at the truth table below we see that according to this definition,
PREAMBLE SEEK TRUTH AND REPORT IT
www.spj.orgSEEK TRUTH AND REPORT IT Ethical journalism should be accurate and fair. Journalists should be honest and courageous in gathering, reporting and interpreting information. Journalists should: u Take responsibility for the accuracy of their work. Verify information before releasing it. Use original sources whenever possible.