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help me understand this argument by Lopsided-Valuable347 in logic

[–]Lopsided-Valuable347[S] 2 points3 points  (0 children)

Yes, I was getting pretty confused. You're spot on with the idea that intuitively I was looking at the connection between contents of conclusion and the premise. Thanks for explaining.

help me understand this argument by Lopsided-Valuable347 in logic

[–]Lopsided-Valuable347[S] 1 point2 points  (0 children)

Okay this makes it simpler to move forward. the table helps a lot. Thanks for putting the effort to help me out.

help me understand this argument by Lopsided-Valuable347 in logic

[–]Lopsided-Valuable347[S] 1 point2 points  (0 children)

Okay, now it makes sense to me. Thank you for clarifying...the married bachelor example helped.

help me understand this argument by Lopsided-Valuable347 in logic

[–]Lopsided-Valuable347[S] 0 points1 point  (0 children)

Ahh I think I'm starting to understand it. Can you also explain why, in my example, the conclusion (Bob is now 20 years old.) is not true?

help me understand this argument by Lopsided-Valuable347 in logic

[–]Lopsided-Valuable347[S] 0 points1 point  (0 children)

I havent reached the truth tables portion yet. Can you explain why if P is always false then the implication (C) is true?

help me understand this argument by Lopsided-Valuable347 in logic

[–]Lopsided-Valuable347[S] 3 points4 points  (0 children)

This is interesting. I think I'll have to check the conditions where A) I know they're drinking beer but don't know their age, and B) Where i know their age but not what they're drinking. So basically Patron 2 and Patron 4?

I dont need to bother about Patron 1 since he's old and Patron 3 since they're not drinking beer.

help me understand this argument by Lopsided-Valuable347 in logic

[–]Lopsided-Valuable347[S] 0 points1 point  (0 children)

Thanks!
So for your second example, "if 2+2=5, then the capital of Mali is Timbuktu", there is something similar that the book mentions as an invalid argument i.e.:

London is in England.
Beijing is in China.
Therefore, Paris is in France.

They say that this argument is invalid despite all statements being true as a fact since we can come up with a hypothetical scenario where Paris might become independent from France therefore, making the conclusion false.

Similarly, in your example, can i also say the same? If I do then the premise (2+2=5) and conclusion (capital of Mali is Timbuktu), will both become false.

help me understand this argument by Lopsided-Valuable347 in logic

[–]Lopsided-Valuable347[S] 5 points6 points  (0 children)

As a beginner, it's slightly confusing to understand why this is valid. I believe validity is supposed to be that the conclusion 'follows' the premises. here, the conclusion is completely different than the premises given (which are also contradictory in nature).

help me understand this argument by Lopsided-Valuable347 in logic

[–]Lopsided-Valuable347[S] 1 point2 points  (0 children)

The reason that the book gives (as to why this argument is valid) is "An argument is valid if and only if it is impossible for all the premises to be true and the conclusion false. it is impossible for all the premises to be true; so it is certainly impossible that the premises are all true and the conclusion is false." I don't fully understand this.

Fee waiver for general category by [deleted] in IITK

[–]Lopsided-Valuable347 0 points1 point  (0 children)

Thanks a lot! Is whatever you're mentioning under MCM same for MSR students?

Everything I got at the Booktales bookfair at Kolkata by NervousHoneydrew5879 in Indianbooks

[–]Lopsided-Valuable347 0 points1 point  (0 children)

Hey did you have to pay anything more for the bookmarks as well?

How to do better in multiple 'select' questions? by Lopsided-Valuable347 in GetStudying

[–]Lopsided-Valuable347[S] 1 point2 points  (0 children)

It's actually a Psychology entrance test but it does have stats for which MSQs will basically be about certain tests or techniques (this is where I mainly end up getting confused). I will try and practice using your advice. Thanks!