A Crash Course in Formal Logic Pt 8a: Natural Deduction in Propositional Logic

Here if give a brief introduction to the idea of natural deduction in propositional logic followed by an overview of the common Rules of Inference used in such systems.

[tarrahkeller]

Very helpful. I hit a brick wall with this material and this clarified for me and helped me move forward. Thank you for making this free and public!

[johnlee]

You're actually way clearer and conciser than my professor. Thank you so much.

[janhartman]

Thank you! Your explanations are clear and providing analogies like the cars also helps to consolidate the knowledge! Love it!

[pathsofglory]

22:30 - Wow, that is basically what I am here for. I wish there was a video just with examples in this style. I cannot believe so many professors miss homing in on how the tools we learn helps our strategy to get out what we need. I really struggled with this and just seeing you doing the operations - WHILE SAYING WHY WE DO IT, NOT JUST ''WE CAN BECAUSE X RULE SAID SO'' LIKE SO MANY PROFESSORS DO - step by step while narrating the thought process reaally helps.

[TokelundOSRS]

I like how you really flush out these first four Rules of Implication and the tips and tricks about them, unlike Hurley (at least in my edition). I've had to really take my time during the chapter and this gives me a much more clear picture. Thank you very much!

[hanicajanearabaca]

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[marylilmila]

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[carminmiller]

Thank you for this, I've asked my professor for explanations and he just tells me to practice so this helps me get an idea of what is supposed to go on!

[rosalynpadayao]

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[jomararana]

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[marthaabera]

OMG thank you so much! You explain this so much better than my professor !!

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