Practice Problems - Rules of Implication

Professor Thorsby goes over some practice problems using the rules of implication.

[@RyanMartin-l7k]

Mark, you are the GOAT! I am watching these videos ten years later and they are still the most helpful things on the internet

[@fondizzie]

Thank you Mr Thorsby! I got a 98 on my exam thanks to you, class average was 67!

[@patricialiggins7714]

I did this exact thing with a same problem on the same application that you used and got the answer wrong. I am extremely frustrated because I don't understand this at all and I am on the last day of class.

[@westernpigeon]

thats where i am right now :( im so lost

[@iKayorei]

I used your video to study for my final. A little unorganized, but I learned a lot.

[@bonniejosephine381]

this was so useful for my class!! thank you!!

[@Guywithair2]

15minutes is where we go past the first 4 rules of implications. This is where I depart. Only working on first 4 at the moment.

[@kawaii_hawaii222]

Hello thanks for your video, do you have a hint for me how to prove ~A↔ B, ~B ↔ C, ~C ↔ A ╞ λ ? I already used the Df rule but I still cannot see how to show that an absurdity follows... Help would be much appreciated... Thank you!

[@MagicianMarcus]

Thank you, your videos are extremely helpful.

[@ianl.7545]

Thank you!

[@maze2359]

thanks hope i pass the quiz later :)

[@sibongankokeshange4048]

A : A--->B : B--->C..............prove C...how do you do it

[@sibongankokeshange4048]

can l ask something ?

[@AlexLlerenas]

Thanks!!

[@MattS-lc8fd]

How about 9. N ⊃ O 2,8 HS10. ˜N 6,9 MT

[@EyonDreams]

thankx

[@MortysPants]

Thank you

[@simranjitkainth7091]

can you help me in this one 2. ∼G ⊃ (∼U ⊃ J) (G ∨ U) ∨ J we need to show equivalence in SD+

[@digimoncrazy]

I did it in 10...