1.4 Validity, Truth, Soundness, Strength, Cogency

[@valerieberger105]

My midterms are in a week and you saved like 75% of a college freshman's life. Thank you.

[@ChaceBonanno]

This is like logic inception! Concepts keep progressively stemming out from the previous concept. The cumulative nature of the subject would be much too confusing to grasp without the videos, but thanks to Mark Thorsby I learn more every video. Thank you for taking your time to create these! Love how you're evidently passionate about the subject, helps to motivate me.

[@jonahmccollom9895]

I hang on your every word... I have never listened to another human being so intently...

[@Sui_Generis0]

😂😂😂

[@ObeyAddie]

19:31 "who knows what that is" LOLOLOL i wish this dude was my teacher lmao

[@stevenf5902]

I died at that part too haha xD

[@ItsTemLock]

I am currently taking this exact course. Your videos have been extremely helpful. Hurley's book has been so dry so thanks for lightening it up.

[@qasimraza3377]

Do you have pdf format of the book?

[@puritymanu7777]

@@qasimraza3377 yeah I have it

[@heatherwhite708]

Changing the bank argument to a valid one. "All banks are financial institutions. Wells Fargo is a bank. Therefore, Wells Fargo is a financial institution." Changing the terms around forms it into a sound argument. Thank you for these videos. I wish my instructor had the option to use this book. It seems to better explain what I've been struggling with for a few weeks now.

[@chanho8198]

Hello how is life right now?

[@victorhammond121]

i love your posts Mr. Thorsby. they are more clearer and understandable and i need help with Axioms, Paradoxes and Problem Solving

[@gianrivero6149]

This was so helpful, thank you so much for your help.

[@clickhorse01]

Thank you so much for these videos. I am finding them very helpful.

[@xiaodongwang7753]

This is good stuff. I’m gonna get the Hurly book and do an on-line course with Professor Thorsly.

[@bwar8479]

Thanks for putting this up Introduction to logic 13th edition by copi/cophen wasn't explaining this part very well.

[@christopherperalta2960]

thank you so much for your help

[@kronosoglu7597]

We may call the first inductive argument example strong and cogent also for the fact that the younger dinasaur bones are likely to be found in the upper stages of the soil rather than deeper as they die after the older dinasaurs and covered with land later on. Sorry about my English if my sentence wasn't understandable.

[@michele6691]

THANK YOU!!!!!!! for this post!

[@Azenzar74]

thank you dr.mark!

[@dofl]

You teach so good ❤️

[@FreddiesLab]

Great video thanks homie

[@bezawiteshetu2931]

Thank you so much ....!!!

[@liamhoward2208]

12:04 A nugget worth holding on to! P.S....I didnt know Edward Snowden taught Logic!

[@MaxBenitez83]

Professor Thorsby, I'm having trouble figuring out whether the following argument is valid or not: "Since the Department of Defense Building in Washington, D.C. has the shape of a hexagon, it follows that it has seven sides". Although both the premise and conclusion are false, the premise appears to support the conclusion. That's why I'd think that the argument is valid. It would be clearly valid if the conclusion stated that the building had six sides rather than seven.

[@yemaani]

You Are Awesome. I just did subcribe to your channel so I can keep visiting it and learn more philosophy and Logic.

[@4MarksMojo]

Prof Thornsby, Which program are you using to record, illustrate, and type in this series?

[@nicht_ritter]

So validity of an argument is its form in which it express itself while soundness shows if the argument is true or false? Am I right?

[@alperturna4371]

How the heck is it possible? a university instructor tries to explain same content for 5 classes and I still dont understand. But I understand this 30minute video! University system is collapsing....

[@danilomirandasantana6156]

amazing man, thanks.

[@TheLupe8735]

Professor can you please fix your picture , so i can see what you're writing? Thank You.

[@contrarianthinker]

Do you have something on how to find the gap in the argument or the assumption in the argument

[@hassanezouicha8658]

Plz can anyone explain the difference between an inductive argument and an invalid deductive argument ?

[@alperturna4371]

thanks thanks thanks!

[@isoundmechanical7127]

who knows what that is, i certainly dont

[@trdi]

It's unfortunate that mathematics and logic use "induction" in different way. Contradictory even, as mathematical induction is actually a deductive process. Things like that bother me.

[@bradenglass4753]

how exactly is a weak inductive argument uncogent by necessity? If cogent just means that the argument's conclusion is true and uncogent is that it is false, can't we have a weak inductive argument that has a true conclusion? not sure how a weak inductive argument cant be cogent.

[@bayuhasmamaw6517]

tanx

[@EaszyInitials]

"Barak" "Liklihood"

[@ahmadsajid1127]

barack*

[@The_Wizard_1-r1t]

17:00

[@fluxcap6537]

uhh sir, it's "Barack" not "Barak" I believe this makes your argument invalid by minor spelling mistake

[@mikemcinally3311]

👍

[@sleepinggorilla]

You like Rob Schneider Rob Schneider is in all of Adam Sandler's movies. Thus you must actually like Adam Sandler movies.

[@ChrisSargent-f5j]

Young Gary Moore David Miller Helen

[@MrPabloguida]

An example of a valid argument against gay married would be: All homosexual invidious who are married are unhappy. Pedro is a homosexual married person. Therefore, Pedro in unhappy. This is a unsound valid deductive argument Obs: I'm totally in favour of love no matter the gender! :)

[@Ataraxia-vz5vx]

An "invalid deductive argument..." Say whaaaaat? lol

[@Zen-lz1hc]

Like

[@joshuareynolds6483]

to be president you have to be 35

[@servantoftheexpander9688]

Nope to be a president you have to be a hypocrite

[@sameersheikh5044]

Some editing will help. Your face is covering up important information.

[@geeblenhoff1]

your face keeps getting in the way of your writing when you are giving examples.

[@polentaonthefloor]

33:53 that moment when getting KZbin money is more important than your offspring.

[@TXSagira]

He's a professor so he makes this for his classes lol I'm taking his online class and he's great! He did cut the video shortly after so I'm sure he took care of his kid.

[@bobswift3347]

run through is good but flawed, book is beter

[@afreenyousaf9438]

You should make ur videos shorter