Proof, truth table, and symbolization assessments: This new feature allows students to practice and test themselves in an online environment that provides immediate feedback.
PageOut, the comprehensive course management system that drives these online tools, also provides instructors with a grade book, a course-specific customized website (no HTML or programming required), and more--all by using easy template-driven forms. This robust product provides unprecedented online resources while saving instructors time and energy.
A new formulation of the rule of Addition (in Chapter 8). By allowing two forms of Addition, the revised rule becomes more flexible, and many proofs can be shortened by one step. Also, since a similar rule, Simplification, was given in two forms in previous editions, this change increases stylistic consistency, thereby making both rules a bit easier to remember.
Revised formulations of the inference rules of predicate logic (in Chapter 9). These new formulations are clearer, more rigorous, and yet more simply expressed.
Updated and simplified coverage of informal fallacies. The definitions of some of the informal fallacies have been updated, and the material on equivocation and amphiboly has been significantly revised and simplified.
New and updated exercises throughout the text.
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2005 McGraw-Hill Higher Education