Professor Thorsby explains how to use truth tables to test arguments for validity.
Пікірлер: 34
@fransofiajeanisaac11 жыл бұрын
For exercise on minute 36.26, I made it on both long and short truth table and it comes up to being valid. Where Professor Thorsby corrected himself, he was not wrong the first time for the Disjunction (~H v G). None of the False lines, 4 total, have all True premises.
@sevrinaanastasia4 жыл бұрын
I know you posted this years ago but I've been finding your videos very helpful as I'm taking Introduction to Logic. Thank you so much!! These help me understand so much! :-)
@DrunkenSquirrell6 жыл бұрын
37:00 Yeah, the ‘H v G’s final value under the main operator in the final problem is still not correct. It should be T T T T F F T T, which makes the argument valid.
@cleowagner1432 Жыл бұрын
i thought so too, glad I am not alone just going crazy lol
@Efiimero11 ай бұрын
@@cleowagner1432 haha same!
@BigCloud198410 жыл бұрын
Mark, My GPA thanks you for taking the time to make these videos.
@kimber.bert.7 жыл бұрын
I'm so grateful for these videos. Thank you for taking the time to make these! I have watched a few other videos and none of them are even comparable to your videos. I really enjoy this class now that i understand it.
@PhilosophicalTechne8 жыл бұрын
Thanks for catching that error!
@metube26343 жыл бұрын
Thorsby, can Truth Tables be used for testing validity of arguments in Categorical Syllogisms?
@marooqi2 жыл бұрын
wait what error? can I study and learn from this or not?
@chitranshsrivastav46482 жыл бұрын
@@marooqi you can, there is just a small mistake in the solution of a particular problem
@mrluuhunplugged20992 жыл бұрын
yoo you helped me today thank you sir I was writing a test and got 90% thank you keep it up the good work
@lifeisbeautiful_128 жыл бұрын
The last example has an error in getting the truth values for the disjunction. The argument is actually invalid. This said and done your videos are amazing and have given me great insight into the subject at no cost. Thanks a lot.
@shantanuagrawal72508 жыл бұрын
+aditya kumar The argument is valid. in (~H v G) The fifth and sixth line should have F values and the seventh and eighth line should have T values . Therefore the conclusion is not rendered invalid as he has shown.
@philosophicalminds.4 жыл бұрын
at 38:11 its incorrect sir, its a wedge so we only need on T, therefore, its t,t,t,t,f,f,t,t, argument is valid.
@garimasagar92413 жыл бұрын
Thank you for sharing, you are a saviour. Period.
@daniellalucaj11 жыл бұрын
Thank you so much, you did such a great job explaining it. It helped me relearn and study for my exam.
@tglenn31218 жыл бұрын
Ok, at the 31:54 spot in the video, you have an exercise that seems confusing because everything is represented by K. K ⊃ ~K // ~K. I'm not sure which pattern of T or F for the K in the conclusion.
@maddystoleurcat Жыл бұрын
I appreciate your videos!
@МеруертСулейменова-ы3м7 жыл бұрын
Hello. Thanks for your video, super useful. Please could you give an example truth table with 16 lines?
@shinaneganz9 жыл бұрын
thank you for helping clear up the actual set up and finding invalidity. The textbook that I use for my class, Intro to logic 12e by irving M and copi Carl Cohen is absolutely terrible in the lack of explaining the why to each concept rather focusing on the whats. The text book you use, although different in set up of the truth table shows the steps clearly. Where my text book shows no steps on how to get the conclusion.
@alanfernandobravopimentel14343 жыл бұрын
36:23 Professor Thorsby broke
@toryglenn508710 жыл бұрын
This is a very helpful explanation. The only question I have is, if a premise has more than one operator, how do I determine which one is the main operator?
@Kellygluckman10 жыл бұрын
you're gonna want to watch 6.1-6.3 in order. They all build on each other, and he explains it
@destineejg6 жыл бұрын
Wish I would have seen this my first time taking my philosophy class... very this time around
@harrisonh29435 жыл бұрын
My savior
@myke2277912 жыл бұрын
Also F + F = F on lines 5 and 6.
@myke2277912 жыл бұрын
I thought that in disjunction T + F = T. On your lines 7 and 8 you have it as F. When I did the problem I found it to be valid. Am I wrong?
@williamboyd249 жыл бұрын
how do you figure out which one is the main operator
@tglenn31218 жыл бұрын
I believe the main operators are those T/F values that occur below the symbols: ⊃ v ~ ⦁ in each column