7.1 Rules of Implication I

Professor Thorsby intorduces the natural deducation method for giving prrofs of valid arguments.

[htg]

You and these videos are the ONLY reason I passed Logic Class. Thank you.

[harperjericho]

you have no idea how much this has helped me. i was struggling so hard in my logic class because my professor went so quickly and I'm not a math person to begin with, you are a absolute lifesaver, sincerely, thank you.

[JonathanMalk]

THANK YOU SIR! My "professor" is a graduate student who likes to just post the whole solution at once and assume that we understand it. Meaning I did not understand the steps necessary to reach said conclusion. Thank you for going step by step and actually explaining this! Bless you sir!

[wesbaugher]

anyone else having trouble with this section, i find it really difficult

[somerville]

I supposedly go to one of thee most prestigious schools in America and yet my Proff and GSI are both completely incompetent and useless. Thank you very much man, now i stand at least a fighting chance at this next exam.

[MattPryze]

To speed things up, click the gear icon on the video and change the speed to 1.5

[noura]

I just wanted to truly thank you for teaching me this, I have had a really hard time trying to understand this and have studied well over a week with no results. Watching this one video cleared everything up for me, thank you so much

[GenevieveRamirez]

OH MY GOODNESS. You've have made this entirely clear. My entire class seriously failed our test on this chapter because no one understood it. I'm now helping everyone 'cause of you B) Thanks so much!!

[yeromey]

thank you so much. Your a gentleman and a scholar I couldnt have done it without your help!!!!

[tayvahstraub]

You make more sense than my professor. He doesn't make videos, he writes a whole book and calls it a lecture. You sir are saving my life

[ramnozack]

"I need to get that D" -Mark Thorsby 2012 49:35

[DozingDreamer]

I finally get the material because you were so clear!!! THANK YOU!!!

[dariusniles]

Thank you!!! I was really confused until now!! It all makes sense now!!

[schylerrenee]

god bless you, i wouldn't be able to solve these puzzles without your help

[federicocontreras]

My professor should call you and ask for advice on how to teach logic. He makes no sense and goes through an entire chapter (not section) in an hour or two and expects us to learn everything. Honestly I learn because of you and not my crummy professor. Thanks prof. Throsby!!!!

[sherrybrusseau]

Thank you for posting these videos, this makes such better sense now. Much appreciation!

[sleepyd]

Thanks mark, just a thought but you may want too contact KhanAcedamy as they may be willing to help spread you're course series

[richieb]

Thanks man this video is after helping me more than anything else I could find.

[joanbarrosguerra]

i dont understand so much english but i always undesrtand your class. thanks.

[cristianhernandez]

THANK YOU SO MUCH. OH MY GOODNESS. That was fantastic. Super well explained. I finally understand. These are so fun now :)