1.4 Validity, Truth, Soundness, Strength, Cogency

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  • Опубліковано 8 лют 2025
  • Professor Thorsby explains the difference between valid and invalid arguments.

КОМЕНТАРІ •

  • @valerieberger105
    @valerieberger105 9 років тому +9

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

  • @ChaceBonanno
    @ChaceBonanno 7 років тому +7

    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.

  • @ItsTemLock
    @ItsTemLock 6 років тому +6

    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.

  • @ObeyAddie
    @ObeyAddie 8 років тому +29

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

    • @stevenf5902
      @stevenf5902 4 роки тому

      I died at that part too haha xD

  • @jonahmccollom9895
    @jonahmccollom9895 3 роки тому +2

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

  • @victorhammond121
    @victorhammond121 10 років тому

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

  • @heatherwhite708
    @heatherwhite708 7 років тому +1

    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
      @chanho8198 Рік тому

      Hello how is life right now?

  • @clickhorse01
    @clickhorse01 10 років тому +1

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

  • @gianrivero6149
    @gianrivero6149 9 років тому +4

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

  • @xiaodongwang7753
    @xiaodongwang7753 3 роки тому

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

  • @bwar8479
    @bwar8479 10 років тому +1

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

  • @christopherperalta2960
    @christopherperalta2960 9 років тому +2

    thank you so much for your help

  • @michele6691
    @michele6691 10 років тому

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

  • @dofl
    @dofl 2 роки тому

    You teach so good ❤️

  • @Azenzar74
    @Azenzar74 7 років тому

    thank you dr.mark!

  • @bezawiteshetu2931
    @bezawiteshetu2931 4 роки тому

    Thank you so much ....!!!

  • @oldsachem
    @oldsachem Місяць тому

    What criteria, indices, or factors bear on likelihood of desired outcome in inductive reasoning? Who determines them and how?

  • @FreddiesLab
    @FreddiesLab Рік тому

    Great video thanks homie

  • @kronosoglu7597
    @kronosoglu7597 4 роки тому

    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.

  • @yemaani
    @yemaani 11 років тому

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

  • @MaxBenitez83
    @MaxBenitez83 11 років тому

    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.

  • @danilomirandasantana6156
    @danilomirandasantana6156 6 років тому

    amazing man, thanks.

  • @alperturna4371
    @alperturna4371 5 років тому

    thanks thanks thanks!

  • @nicht_ritter
    @nicht_ritter Рік тому

    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
    @alperturna4371 5 років тому

    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....

  • @liamhoward2208
    @liamhoward2208 5 років тому +1

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

  • @oldsachem
    @oldsachem Місяць тому

    How does one verify an inductive argument for cogency?

  • @TheLupe8735
    @TheLupe8735 11 років тому +2

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

  • @4MarksMojo
    @4MarksMojo 7 років тому +2

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

  • @hassanezouicha8658
    @hassanezouicha8658 4 роки тому

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

  • @bradenglass4753
    @bradenglass4753 2 роки тому

    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.

  • @trdi
    @trdi 7 років тому +1

    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.

  • @contrarianthinker
    @contrarianthinker 5 років тому

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

  • @isoundmechanical7127
    @isoundmechanical7127 Рік тому

    who knows what that is, i certainly dont

  • @bayuhasmamaw6517
    @bayuhasmamaw6517 3 роки тому

    tanx

  • @fluxcap6537
    @fluxcap6537 Рік тому

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

  • @mikemcinally3311
    @mikemcinally3311 8 років тому

    👍

  • @EaszyInitials
    @EaszyInitials 5 років тому

    "Barak"
    "Liklihood"

  • @The_Wizard_1-r1t
    @The_Wizard_1-r1t 2 роки тому

    17:00

  • @sleepinggorilla
    @sleepinggorilla 3 роки тому

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

  • @ahmadsajid1127
    @ahmadsajid1127 3 роки тому

    barack*

  • @Zen-lz1hc
    @Zen-lz1hc 3 роки тому

    Like

  • @MrPabloguida
    @MrPabloguida 8 років тому +1

    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! :)

  • @geeblenhoff1
    @geeblenhoff1 6 років тому +2

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

  • @Ataraxia-vz5vx
    @Ataraxia-vz5vx 10 років тому

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

  • @sameersheikh5044
    @sameersheikh5044 4 роки тому +1

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

  • @joshuareynolds6483
    @joshuareynolds6483 7 років тому

    to be president you have to be 35

  • @polentaonthefloor
    @polentaonthefloor 8 років тому

    33:53 that moment when getting UA-cam money is more important than your offspring.

    • @TXSagira
      @TXSagira 8 років тому +1

      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
    @bobswift3347 10 років тому

    run through is good but flawed, book is beter

  • @afreenyousaf9438
    @afreenyousaf9438 6 років тому

    You should make ur videos shorter