5.2 Venn Diagrams and Categorical Syllogisms

[@nobody-gh2yf]

ten years later and I'm using this to complete my online class during coronavirus

[@Xpistos510]

Saaaame.

[@nobody-gh2yf]

@@Xpistos510 studying logic rn feels so absurd I feel for u bro

[@mackenzieleskovac9426]

Me rn

[@ayouthwellspent]

I still have no idea how this works. Had a 2 hour lecture on this earlier today, and left feeling totally lost.

[@ligmanewtons2523]

Nobody can help you when you can't even express why you don't understand it.

[@tomyang1117]

I know that feel bro, somehow this just feels so complicated

[@kimberlygascon1722]

Same

[@indinman_1]

Yes

[@nicknobreak]

It's funny how I can learn about logic better from a free video series on KZbin than I can from my class that I paid $500. Seriously, my logic professor is really flipped out, and he's a PhD too... Kinda scary. Anyhow, Thanks for the help!

[@afaqjanan7817]

13 years later these lectures are still shining

[@Xpistos510]

I love educators. Most underrated and underrespected profession in American history.

[@technochick]

I feel like I need to cash app you for these videos. They have helped me far beyond just reading the book alone and the clips our teacher provided. Thank you!

[@martycarr1477]

With all due respect to the professor, these classes are still around to keep people with Philosophy degrees employed... I mean I can see lawyers getting good use out of a course like this when developing an argument but.... This is one of those things that makes me wonder why anyone would need to be this educated on a topic like this. The vast majority of the world are not educated at this particular level so if your great at making a logical argument it doesn't because most people don't have the understanding at this level to say "You know what your right after all, I had no idea I was commiting a logical fallacy until you drew me this venn diagram. I am really glad ive spent years of time and money studying pre reqs that have nothing to do with my actual degree. Someones getting paid tho!

[@sauljewhebrewberg3147]

You should have spent more time studying grammar.

[@servantoftheexpander9688]

@@sauljewhebrewberg3147 Mastering Grammar and logic will really make you a formidable Force in today's world.

[@willbradley3201]

If you’re in the heat of a debate, you’re not going to suddenly be like “let me pull out my handy dandy Venn diagram to see if you’re argument is valid or not.” I’m sorry but this whole thing is hugely impractical. I’m not blaming this guy either, I’m just blaming the state of our education system.

[@servantoftheexpander9688]

@@willbradley3201 Logic was the most fundamental subject studied for 2 millenium. It trains you how to think It is also called the criterion of knowledge the distinguisher of truth from falsehood. Logic was so powerful that before Aristotle it was hidden from the masses. Problem isn't with the education system but with you. As for your claim about Venns diagrams It is to test the validity of a syllogism and to know if the argument holds true form you not Able to use it in a argument provides no reason for it to be useless

[@willbradley3201]

@@servantoftheexpander9688 For someone who is trying to come across well versed in logic it surprises me to see you use a fallacious, ad hominem argument like "education is not the problem you are." Anyway, you're missing the point in my statement. I did not say that logic as a whole is useless, I said that this particular strategy seems pretty impractical for having so many steps and being so time consuming. It's akin to the new common core multiplication method taught to school children that yields the same result but with more steps and wastes more time than the old method. As for this Venn diagram in question, if it's purpose is to determine validity, it relates to arguing. If it is totally impractical because it requires too many steps and takes too much time, then it is not useful for arguing.

[@AmmyWolfable]

This is great, I misunderstood my professor's lectures and this really cleared things up for me. Plus you can rewind and rewatch.

[@BrotherCameron]

Oh I am so glad these videos are on here. I get such a headache of debating people whom say they are using logic, but then have no idea what I'm talking about once I get into the intricacies of deductive reasoning. Thank you for posting these videos. Peace and grace to you, my friend.

[@cherchixiong2508]

Mark, I just want to let you know your videos helped me get an A in what I believe to be the hardest class I've taken yet! Cant thank you enough. These videos are old but GOLD!

[@raejohnson2647]

Great instructional video. Choice of wording and examples are clear and easy to understand. Thank you!

[@pkml6539]

Thanks for the lecture. I am preparing for some upcoming competitive exams.. this stands helpful.

[@undeng_2345]

Question sir. Part of the rules of categorical syllogism is "Two universal premises can't have a particular conclusion" But is your last example considered as two universal premises? Help pls

[@cryptedcoder5669]

this man is a legend hands down

[@hirotakadi4214]

Wow , I took this in College...bullshit then, bullshit now. Besides making no valuable sense, what is the purpose? Does anybody EVER use this? I've never once known anyone (and I know tons of brilliant people) who stopped and said, Hmm, let me think about what the predicate is so I can figure the proposition...

[@karlCervantes]

Hiro Takadi I agree this is bull crap. I hate it as well since I have to take it in college

[@julsmarabe7798]

Hiro Takadi well i still prefer to learn this than mathematics

[@michaelfriedrich9931]

Haha! I have an exam in a few hours on this crap. I am taking a course in logic. The only practical application I can think of is acting smug. But that's usually not a good thing to do.

[@laserprawn]

It's how the computer you're typing this on can run. Claude Shannon developed logic gates that functioned with circuitry allowing 0/1 to indicate on/off. He did this by extending Boole's boolean algebra, which was a systematization of Aristotle's predicate logic. So yes, people use it - you're using it right now, and the people who built your computer used it.

[@omsaidangi]

I agree but if anyone want to pass then have to do it No option

[@bekirarollins]

thanks so much Mr Thorsby NOW I UNDERSTAND

[@JuiceAndBricks]

bruh that OIO-1 really messed me up on my homework lmao thank you for explaining this!

[@rahulpandey4673]

Thanks Sir. Your lecture was quite helpful and easy to understand.

[@dakilangcornedbeef]

YOU ARE THE BEST. WHY DID I FIND U JUST NOW

[@thevanilladoll]

Thank you so much! My finals are tomorrow and this was a big help!

[@iancameron4110]

I just attended a lecture on this today, and the prof I had also stumbled through the explanation with a series of 'sorries' that left me dumbfounded. I'd follow him for a moment and then he would say, 'Oh wait a minute' correct the diagram, and then continue until he would trip over his words again.

[@aigiannis]

see at time 7:23 - why does the left side of the left cirkel not count? aren't there any elements that are not P? in that case conclusion could be true?

[@muzzammilwahab4260]

The Sir explaining wrong.... He put X on his wish

[@denilsaji5818]

Thank you sir....from India, Kerala ❤️

[@davidranger9135]

At 3:21, the diagram shows some S that are not P. This contradicts the conclusion that all S are P, or "T", as you have it here. What am I missing?

[@davidranger9135]

OK. I have it, but it's not clear from the video. IT IS CRITICAL when seeing this diagram to understand that the conclusion, "All S is P", means "All S OUTSIDE of P is EMPTY." That is clearly shown on the diagram, and so the Venn shows the validity of an AAA-1 syllogism.

[@vonTwirlenkiller]

Very helpful. I have a final next week and this was a great review

[@fishyfishy33]

Thanks You just saved my final grade!!

[@omarAkhan92]

this will definately help me pass my exam :)

[@yuxinjiang2722]

Amazing voice!!! You should consider do broadcast

[@awuduadamuzulaikha1880]

Thanks for your lectures 💕

[@huyanhle]

Can anyone please help me to solve this question! In a group of 50 people, it was discovered that 30 were male and 25 owned a car. Assuming that each person was either male or owned a car, how many (a)males in the group owned a car? (Answer = 5) (b) car owners in the group were female? (Answer = 20) (c) males in the group did not own a car? (Answer = 25)

[@mnemonday]

In your OIO-1 example, another reason why it is invalid is because the two premises are particular. One must at least be universal, right?

[@aishsierra5687]

Yeah ...From 2 particular premises a conclusion can't be drawn out keeping in mind that argument having -ve premises (although universal) is also invalid

[@aishsierra5687]

In last exp u told that there's at least one 'F' that exist . Can't F be an empty set??

[@cikobeibi]

i am confuse at to which or how much do i have to shade, because you didn't explain it :( my teacher makes us use the rules of categorical syllogism, and then we have to defend it as to what rule it is violating , but if i would learn this i think it will be much easier D:

[@shanaepeart4328]

Hi can I ask you a question?

[@NguyenHung-nl4vb]

hi everyone, do you know how to do this one. Write the following syllogism in the standard categorical form and analyze its validity. “Whenever I'm in trouble, I pray. And since I'm always in trouble, there is not a day when I don't pray.” (Isaac Bashevis Singer) (Hint: you will need to change the wording of these three propositions, without changing their meaning, to put the argument into the form of a three-term syllogism.)

[@kimriggles2450]

Thank you for your help.

[@piscozinny8588]

Thank you so much..

[@355006]

No. It's ok to have them all particular, or universal. Yet there is another reason for it to be invalid. That is one of the middle terms in the premises should be distributed, while the other should be undistributed.

[@0451Deus]

2:54 sort of annoying how my professor neglected to mention this detail. That we shade in what is not there. Made it much more difficult to follow the lecture.

[@michellejohnson6937]

Good lecture

[@indinman_1]

Thanks sir 🙏🙏

[@theresechristiansen9769]

uhm, I was waiting for you to click at about 5:29 that something was wrong....:/ Believe it or not we teach this to 15 year olds in philosophy classes. It's basic actually. Just follow the quadrants and start with something really simple.

[@sanamir9886]

Thanks

[@benrawarg]

sir, thank you

[@ipenchimphapaellium7683]

thanks

[@everybodyhatestony]

Thanks for this

[@omkarkumar4266]

nice thank u!!

[@CHIRANJEEV1272]

Tqs sir

[@ZaGaZigZag]

I wish there a class on Illogic, I think I would do way better!!!

[@ehsanullah4385]

Book name please

[@PhilosophicalTechne]

"A Concise Introduction to Logic" by Patrick Hurley

[@aestheticart2420]

Thanks....💞

[@peckmeharderbs8197]

thx

[@stephenprice3357]

his face is right in the camera kmsl

[@ZaGaZigZag]

@ZaGaZigZag But thanks for your videos!!!

[@muzzammilwahab4260]

You put X on your wish