Man, this is excellent! I am a computer programmer and i have been looking for a good way to explain what exactly it is what I do.. how you are required to think to be an effective programer.. and efficient thinker.. this is amazing I've already shared this link. i know it's 5 years old but.. well done... well done. I am one of the lucky ones this is an innate ability of mine, in fact this is the best explanation of how my brain operates. Thanks.
I am majoring in software engineering as of right now. One of the first courses during your general education years is "Introduction to logic" Logic is the perfect class since it teaches you about classes, subclasses and different ways to analyze arguments. It's an extrodianary class.
Thank you so much, that was very helpful and clear. I wish my professor was that clear. 7 Minutes of your video was more helpful than 10 weeks of class.
Great job! So many times I've seen these things explained in a complicated manner. Thanks for keeping it simple, to the point, and using meaningful examples.
Ahhhh, yes, Logical Truth Sets -- I remember them from a math course I took many years back in college. Your lectures are always enriched by your visual displays. Your teaching is always very clear to me. Take a bow, Professor. You deserve applause!
I've just discovered this and I'm thinking about watching the series. Maybe you talked a bit fast, but in general your presentation style is excellent. Of crucial importance, you did it by writing on a whiteboard instead of using Powerpoint. This gives our brains time to absorb what you're putting out. That's how we non computer-geeks need it. And look at all those other great topics you have!
I think like a lot of commenters I was trying to find something specific on Yt and we got here and thought Aha! This is what i was looking for! Well done.
I get them all. Disjunctive syllogism reminds me of mutual exclusivity (exclusive OR function, without the cases where the events are the same value; a = 0 and b = 0 and a = 1 and b = 1). The example for conjunction seemed a bit "loose". Great vid!
Thank You Kind Sir.......You are an immortal benefit to this world.. To me you are amazing and can't thank you enough. Wish I could be as great as you. Gonna keep trying till I get it and thanks again
Great presentation, thank, you, I understand these rules much better now. Anyway we learned two more in our discrete structures class, named simplification and addition/join (translated from slovene), it would be really good if you present them too.
Dear Dr Campbell. I am just starting logic. My BSc did not go into this at all and I have been left wanting in my research. I find your explanation a good starting point and I thank you so much for helping me. Is there a recommended book which does this in easy steps in a similar way that you do but increases the knowledge in stages? I do find some of the comments made by your followers difficult to understand though. Best Wishes George
+lazyperfectionist : In addition to the pointing to the necessary consequence that +jimmyt4311 does, please note that what modus tollens does is *negate* the antecedent, by the negation of the consequent. This is *exactly* opposite from the logical fallacy, affirming the antecedent, in which the consequent is used to *prove* the antecedent. The actual fallacy is known to be so because we recognize that consequences often come from multiple distinct causes. For instance, using the example of stomach ache, it could be caused by a virus, or being punching in the gut, so we could not say, "if I eat too much, I get stomachache; I have stomacheache, therefore, I ate too much." However, as +jimmyt4311 pointed out, if it is true (and we take it as so) that "If I eat too much, I get stomachache", then if I *don't* have stomachache, then I could not have eaten too much. We *don't* put a "could" in that "If ..., then"; were we to do that, we'd have to refer to some other form of logic, maybe the modal or Baysian discussed later.
I have a problem with the specific example cited to illustrate Modus Tollens. It looks like affirming the antecedent. Eating too much could cause stomach pain, but not having stomach pain does not necessarily establish that one has not eaten too much. Stomach pain is only one such symptom.
hello Anita May I'm Phil Philogene saw your profile on " Health & Fitness Channel" on googleplus communities. and just wondered how your workouts, exercise and health goals were going?
I've fallen behind just a bit but I'll get back on track shortly. With school, part - time work and tennis practice it's hard to fit it in. Guess I'll have to get up earlier huh....
A: Condition (If today is examination day), B: Result (the today is a busy day) B: (Today is a busy day) A: (So, today is examination day) - So... If A then B if B then A This is what you are are presenting...which is invalid. There could be many ways to achieve B, so, claiming A on the basis of B is invalid. One can claim that if B is not present then A is not present. Look at the forms he presented.
I really enjoy these lectures and am a big fan. However, there is a problem with some of the examples. Namely, they are causal rather logical. The language used also suggests causal rather than logical relations. "If A happens, then B will happen." "B hasn't happened, therefore a hasn't happened." For example, "if I eat too much, my stomach will hurt." "My stomach doesn't hurt, therefore I haven't eaten too much." The difference between logical and causal relations is subtle but crucial.
Thank you for your help! So, Will the following be considered as WFF. 1. C v~ C v. 2. ~ A * ~~ B 3. ~(Z- -> Z) 5. (A --> B) --> (C ≡ D) --> (E v F --> G) 6. A --> (E D) 7. ~A --> (A v ~ A) 8. ~~A --> (A v A) 9. Z v BB 10. ~Z v ~BB Thank you for your help and support.
I can't seem to find any videos on addition, simplification or constructive dilemma. Do you have any, but more so for anything for constructive dilemma? Your simple teaching style has made me learn the ones you have in this video very quickly so if you have one on constructive dilemma I'd appreciate a link.
I don't entirely understand #5. I hope someone will clarify this for me - is it safe to conclude that the gallon of milk was bought from the store? or do I just leave it at having gone to the store and bought a gallon of milk as sequential events?
Im from the Philippines and you just educated someone from the other side of the world. This is a real teacher. Salute!!
11 rules talaga yan e...
This is an example of raw intelligence; making the complex more mentally digestable. You are a good teacher!
Man, this is excellent! I am a computer programmer and i have been looking for a good way to explain what exactly it is what I do.. how you are required to think to be an effective programer.. and efficient thinker.. this is amazing I've already shared this link. i know it's 5 years old but.. well done... well done. I am one of the lucky ones this is an innate ability of mine, in fact this is the best explanation of how my brain operates. Thanks.
I am majoring in software engineering as of right now. One of the first courses during your general education years is "Introduction to logic" Logic is the perfect class since it teaches you about classes, subclasses and different ways to analyze arguments. It's an extrodianary class.
Thank you so much, that was very helpful and clear. I wish my professor was that clear. 7 Minutes of your video was more helpful than 10 weeks of class.
Great job! So many times I've seen these things explained in a complicated manner. Thanks for keeping it simple, to the point, and using meaningful examples.
Thank you reading through my logic book my head was spinning, you've made this a lot clearer.
Ahhhh, yes, Logical Truth Sets -- I remember them from a math course I took many years back in college. Your lectures are always enriched by your visual displays. Your teaching is always very clear to me. Take a bow, Professor. You deserve applause!
Exactly what I was looking for, this is the best video on TH-cam regarding the rules of inference in symbolic logic.
This video is an example of what my professor should be doing. Thank you so much!
I've just discovered this and I'm thinking about watching the series. Maybe you talked a bit fast, but in general your presentation style is excellent. Of crucial importance, you did it by writing on a whiteboard instead of using Powerpoint. This gives our brains time to absorb what you're putting out. That's how we non computer-geeks need it. And look at all those other great topics you have!
This should be taught in primary school! Great videos.
I think like a lot of commenters I was trying to find something specific on Yt and we got here and thought Aha! This is what i was looking for! Well done.
Hypercam, capture card, and youtube to mp3 converters can be used seperately or in conjunction, depending if you want just audio, video or both.
I get them all. Disjunctive syllogism reminds me of mutual exclusivity (exclusive OR function, without the cases where the events are the same value; a = 0 and b = 0 and a = 1 and b = 1). The example for conjunction seemed a bit "loose". Great vid!
Thanks for posting this series on symbolic logic.
You explain so clearly my friend. Thank you, I am a happy subscriber of your works.....
Thank You Kind Sir.......You are an immortal benefit to this world.. To me you are amazing and can't thank you enough. Wish I could be as great as you. Gonna keep trying till I get it and thanks again
you made this soo much easier to understand than my current geometry teacher!!! thanks you so much
Great presentation, thank, you, I understand these rules much better now. Anyway we learned two more in our discrete structures class, named simplification and addition/join (translated from slovene), it would be really good if you present them too.
My teacher is sooo unclear about these points!!
You are amazing for posting these!!!
Thank you for explaining it so well. You made everything very easy to understand
Bro this is soo much better explained than in my textbook or my lectures. It’s actually making me interested in logic😂😂
Thanks so much for your uploads. I'm taking Logic now and it's pretty difficult at the University level.
Dear Dr Campbell. I am just starting logic. My BSc did not go into this at all and I have been left wanting in my research. I find your explanation a good starting point and I thank you so much for helping me. Is there a recommended book which does this in easy steps in a similar way that you do but increases the knowledge in stages? I do find some of the comments made by your followers difficult to understand though. Best Wishes George
I'm so grateful for this, tutorials. please do you any lesson on hoare logic?
+lazyperfectionist : In addition to the pointing to the necessary consequence that +jimmyt4311 does, please note that what modus tollens does is *negate* the antecedent, by the negation of the consequent. This is *exactly* opposite from the logical fallacy, affirming the antecedent, in which the consequent is used to *prove* the antecedent. The actual fallacy is known to be so because we recognize that consequences often come from multiple distinct causes. For instance, using the example of stomach ache, it could be caused by a virus, or being punching in the gut, so we could not say, "if I eat too much, I get stomachache; I have stomacheache, therefore, I ate too much."
However, as +jimmyt4311 pointed out, if it is true (and we take it as so) that "If I eat too much, I get stomachache", then if I *don't* have stomachache, then I could not have eaten too much. We *don't* put a "could" in that "If ..., then"; were we to do that, we'd have to refer to some other form of logic, maybe the modal or Baysian discussed later.
I have a problem with the specific example cited to illustrate Modus Tollens. It looks like affirming the antecedent. Eating too much could cause stomach pain, but not having stomach pain does not necessarily establish that one has not eaten too much. Stomach pain is only one such symptom.
Awesome, awesome! I am studying for the final coming up this weekend and this section is where i am stuck on! This made it way clearer :D
Holy Hell I wish I was watching these in the beginning of the semester.
brilliant. Best explanation on youtube!
Thanks for helping me understand the concepts better.
hello Anita May I'm Phil Philogene saw your profile on "
Health & Fitness Channel" on googleplus communities. and just wondered how your workouts, exercise and health goals were going?
I've fallen behind just a bit but I'll get back on track shortly. With school, part - time work and tennis practice it's hard to fit it in. Guess I'll have to get up earlier huh....
These lectures rocks brother!!! Thank you so much!!
Excellent teacher, thank you.
Thank you very much for this. I have a test on Friday and my teacher is really not good at teaching.
Thanks for the video, was really helpful!
Cool good to see someone posting on logic!
Very good video, excellent stuff
A: Condition (If today is examination day), B: Result (the today is a busy day)
B: (Today is a busy day)
A: (So, today is examination day)
- So...
If A then B
if B then A
This is what you are are presenting...which is invalid. There could be many ways to achieve B, so, claiming A on the basis of B is invalid. One can claim that if B is not present then A is not present. Look at the forms he presented.
Very clear and concise. Thank you.
simple and easy to understand. thank you!
thanks...helped a lot with my assignment
I really enjoy these lectures and am a big fan. However, there is a problem with some of the examples. Namely, they are causal rather logical. The language used also suggests causal rather than logical relations. "If A happens, then B will happen." "B hasn't happened, therefore a hasn't happened." For example, "if I eat too much, my stomach will hurt." "My stomach doesn't hurt, therefore I haven't eaten too much." The difference between logical and causal relations is subtle but crucial.
thank you so much! One more question: What about the Double Negation? [not(notK)] -> K
Thank you for your help!
So, Will the following be considered as WFF.
1. C v~ C v.
2. ~ A * ~~ B
3. ~(Z- -> Z)
5. (A --> B) --> (C ≡ D) --> (E v F --> G)
6. A --> (E D)
7. ~A --> (A v ~ A)
8. ~~A --> (A v A)
9. Z v BB
10. ~Z v ~BB
Thank you for your help and support.
I can't seem to find any videos on addition, simplification or constructive dilemma. Do you have any, but more so for anything for constructive dilemma? Your simple teaching style has made me learn the ones you have in this video very quickly so if you have one on constructive dilemma I'd appreciate a link.
Thanks Sir, Can you make a tutorial for (Proof Techniques)
I'm using you as my professor from now on...
It's urgent plz reply .. Sir plz tell all the criteria for evaluation of hypothesis.
this video will help me pass logic.
great explanation...finally I understand! thanks.
Dr. Cambell, do you recommend any good books to follow along with your lectures? Thank you for providing these lectures by the way.
Thanks for being a bro! Keep up the great work!
I still find this helpful. Thanks.
Thanks, it is very good exploitation. Keep up good work.
GREAT VIDEO thank you so much!!! can you please post about PROOFS
they are so hard !!!!!
thanks so much! very well laid out
Great video!!
-->just need to plan your examples a bit more.
I don't entirely understand #5. I hope someone will clarify this for me - is it safe to conclude that the gallon of milk was bought from the store? or do I just leave it at having gone to the store and bought a gallon of milk as sequential events?
+YanLinYing It is simply a statement that has a truth-value, also known as an assertion.
very informative
thank you very much! you might save me from failing! :)
Oh man, why can't you be my professor? Awesome job.
In what undergraduate program can i study this?
That pun man! That thing was just too easy XD
A lot better than MY teacher .
You made that plain simple.....why did I seem so complex before!?
Thank you helped me a lot
good review man
Good job, thanks
Thanx Bro awesome
you're the man. THANK YOU
Thank you for making this video. It helps a lot ^_^
Thank you so much!
Thanks
awesome tnk u
rule #5 isnt rule rule of inference at all
Thank you for Teaching Us! =))
I wish you were my professor
wish i was in his class
I'm going to the movies and eat at the same time. I'd get hungry.
helpful thx
how I can symblize this argument:
if today is examination day ,then today is a busy day.
Today is a busy day.
So,Today is examination day.
Because of the Model Problem.
M Square Gram M2 GRAM Inc.I AM HERE
poor theory though, as some need time and space restrictions
Do I have permission to love you?
mhm, I know some of these words.
this guy is making up his own symbols. there is no arrow or double arrows in SL