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How to Determine if an Argument is Valid | Counterexample Method

Learn how to determine if an argument is valid by using the counterexample method. Counterexamples play an important role in logic, philosophy, and critical thinking. Here I show how counterexamples in logic can help you determine valid vs. invalid reasoning when evaluating deductive arguments. Subscribe!    / @letsgetlogical   0:00 Introduction 0:10 Definition of valid argument 0:50 The counterexample method 1:11 First example of a counterexample (Blue Jay) 2:17 Second example of a counterexample (Zebra) 2:58 Problems with the counterexample method Further Reading Paul Herrick, Introduction to Logic, Chapter 4, “How to Evaluate a Deductive Argument” (Recommended companion textbook for this channel.) The Scrub Jay is not a Blue Jay. They are different species: https://en.wikipedia.org/wiki/Califor... The Elephant Shrew is more closely related to elephants than shrews! https://en.wikipedia.org/wiki/Elephan... #counterexample #counterexamplemethod #counterexamplesinlogic