A Crash Course in Formal Logic Pt 7b: Truth Tables for Propositions

In this lecture I show how to set up a truth table and use it to categorize sentences as either tautologies, self-contradictions or contingent. I also show how to compare sentences to see if they are logically equivalent, contradictory, consistent or inconsistent.

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[elghunk]

I have seen a lot of logic videos on the net. This series is the best! 

[PhilHelper]

You're right! That's a pretty embarrassing slip on my part. Thank you for spotting it.
And thanks for the blurb on my mnemonic. I'm pretty proud of that one :-)

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[dmsexton]

I'm enjoying this series a great deal. Thanks for all the work you've put into it, especially the mnemonics in lesson 6a. Hopefully, more people will discover your videos in the future.

I do have a question with this lesson, and maybe I should review the previous ones first to clarify my understanding, but at the 8:15 mark, should there only be one T in the fourth column?

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