# Ch 11: Logic

Watch online logic video lessons to learn about critical thinking, logical fallacies, conditional statements and more. Each lesson is accompanied by a short multiple-choice quiz you can use to check your understanding of these logic topics.

## Logic

Is your logic impeccable? Well, what are the premises of your argument, and how did you reach your conclusion? Our logic lessons will cause you to question your questions, your answers and the steps in between. As we exercise our critical thinking skills, we'll also learn how to avoid pitfalls, intuitive traps that stretch logic. You'll investigate the different forms a logical fallacy can take, such as hasty generalization, circular reasoning, false cause and limited choice. You may be surprised by how often these logical shortcomings come up in everyday life.

Logic is a structured search for truth that takes on many shapes and styles. You'll study how logic looks past appeals to emotion, popularity and ignorance. Our search for truth will lead us to propositions as well as to the truth tables and truth values that follow. If a proposition is false, then is its negation true? You'll learn this and more as we continue our logical journey.

Mathematics has its own language, and logic pays particularly close attention to phrasing. You'll achieve fluency in the language of logic when we give the lowdown on conjunctions, disjunctions and other logical connectives. We'll also explore conditional statements, the phrasing that makes up propositions, hypotheses and conclusions. Truth can take on many forms, so we'll also look at logical equivalence. Our last lesson will cover inverses, converses, contrapositives and counterexamples to show how mathematical statements can be restructured. Along the way, there will be plenty of real-world examples to help the concepts stick. Taking advantage of this great opportunity is the only logical conclusion!

Final Exam
Chapter Exam

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