Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized for You
we will pick new questions that match your level based on your Timer History
Track Your Progress
every week, we’ll send you an estimated GMAT score based on your performance
Practice Pays
we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
It appears that you are browsing the GMAT Club forum unregistered!
Signing up is free, quick, and confidential.
Join other 500,000 members and get the full benefits of GMAT Club
Registration gives you:
Tests
Take 11 tests and quizzes from GMAT Club and leading GMAT prep companies such as Manhattan GMAT,
Knewton, and others. All are free for GMAT Club members.
Applicant Stats
View detailed applicant stats such as GPA, GMAT score, work experience, location, application
status, and more
Books/Downloads
Download thousands of study notes,
question collections, GMAT Club’s
Grammar and Math books.
All are free!
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
A valid argument is often defined as one in which it is not [#permalink]
22 Jul 2006, 18:33
00:00
A
B
C
D
E
Difficulty:
(N/A)
Question Stats:
0% (00:00) correct
0% (00:00) wrong based on 0 sessions
A valid argument is often defined as one in which it is not possible for all the premises to be true and the conclusion false. A circular argument is sometimes defined as one in which one of the premises is identical to the conclusion.
From these definitions we can infer that...
A) Every circular argument is valid as long as its premises are true.
B) Every valid argument is circular.
C) No circular argument is valid.
D) Some circular arguments are valid, and some are not.
E) Some circular arguments are not valid, and some valid arguments are not circular.
Not valid Argument: TT(All true premises) --> F (False conclusion)
Vaid argument: Everything else except the above combination.
So this means TT-->T, TF-->F,TF-->T and FF--> F are all valid.
Circular argument is one in which conclusion is one of premises..
TT-->T
TF-->F
TF-->T
FF-->F
I have done this question earlier. This is my error logs. This time I will not get it wrong. Thats why I am not answering it. Let others try. _________________
Valid argument - Not all premises are true - Hence some premises are true
Conclusion is not false.
Cicular arguments -
One of the premises is identical to conclusion.
Now the answer choices.
A - Not possible. Valid argument wont have all the premises true.
B - Valid argument can have the same premise as the conclusion and may not have one. Hence we cannot say whether every valid argument is circular.
C - Same as above. Circular arguments can be valid.
D - True.
E - IMO the best . Covers both valid and circular arguments.
A valid argument is often defined as one in which it is not possible for all the premises to be true and the conclusion false. A circular argument is sometimes defined as one in which one of the premises is identical to the conclusion.
From these definitions we can infer that...
A) Every circular argument is valid as long as its premises are true.
I choose A. An argument is defined as one in which there can be true and false premises. As long as there is at least one true premise a correct/true conclusion can be drawn. A circular aggument is one which the premise = conclusion. Now ststement tells us that all premises are true. So the argument has to be valid, since one of the premises is the conclusion.
A valid argument is often defined as one in which it is not possible for all the premises to be true and the conclusion false. A circular argument is sometimes defined as one in which one of the premises is identical to the conclusion.
From these definitions we can infer that...
A) Every circular argument is valid as long as its premises are true.
B) Every valid argument is circular.
C) No circular argument is valid.
D) Some circular arguments are valid, and some are not.
E) Some circular arguments are not valid, and some valid arguments are not circular.
OE: Some people find this paradoxical, but it follows directly that circular arguments are valid. If the premises are true, and the conclusion is one if the premises, it must be true. Another trick here is the word 'valid.' Just because an argument is valid, does not mean it is true. Many people will make that false assumption and be thrown off on this question.
wasn't this one cruel??? I was b/w A and C, picked C
I misunderstood what they meant by 'infer from the rules'. Basically it means assume these rules hold true. The question itself states that one rule holds true usually (but not everytime) and the other one holds true some of the time.
I switched my answer from A to E, thinking I had successfully avoided the trap.
As I’m halfway through my second year now, graduation is now rapidly approaching. I’ve neglected this blog in the last year, mainly because I felt I didn’...
Perhaps known best for its men’s basketball team – winners of five national championships, including last year’s – Duke University is also home to an elite full-time MBA...
Hilary Term has only started and we can feel the heat already. The two weeks have been packed with activities and submissions, giving a peek into what will follow...