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Lines can be parallel in a Euclidean system of geometry. But [#permalink]

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06 Sep 2006, 10:37

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Lines can be parallel in a Euclidean system of geometry. But the non-Euclidean system of geometry that has the most empirical verification is regarded by several prominent physicists as correctly describing the universe we inhabit. If these physicists are right, in our universe there are no parallel lines.

Which one of the following is an assumption that is required by the argument?

(A) There are no parallel lines in the non-Euclidean system of geometry that has the most empirical verification.

(B) Most physicists have not doubted the view that the universe is correctly described by the non-Euclidean system of geometry that has the most empirical verification.

(C) There are no parallel lines in every non-Euclidean system of geometry that has any empirical verification.

(D) The universe is correctly described by the non-Euclidean system of geometry that has the most empirical verification if prominent physicists maintain that it is.

(E) Only physicists who are not prominent doubt the view that the universe is correctly described the non-Euclidean system of geometry that has the most empirical verification.

(A) There are no parallel lines in the non-Euclidean system of geometry that has the most empirical verification.

If we negate A... i.e there are parallel lines in the non-ESG, then the argument falls apart.

If there are parallel lines in non-ESG then the assertion that the universe has no parallel lines is not true as we can prove in non-ESG that there can be parallel lines.

Hi PS_Dahiya,
Yes I am back after a gap of a few months. Although I was always tracking this forum. I was really disappointed to see your score, and always felt that you deserved more than you got...

Anyways, coming to this problem, your answer is not correct

(A) There are no parallel lines in the non-Euclidean system of geometry that has the most empirical verification.

If we negate A... i.e there are parallel lines in the non-ESG, then the argument falls apart.

If there are parallel lines in non-ESG then the assertion that the universe has no parallel lines is not true as we can prove in non-ESG that there can be parallel lines.

Ditto
_________________

Uh uh. I know what you're thinking. "Is the answer A, B, C, D or E?" Well to tell you the truth in all this excitement I kinda lost track myself. But you've gotta ask yourself one question: "Do I feel lucky?" Well, do ya, punk?

Lines can be parallel in a Euclidean system of geometry. But the non-Euclidean system of geometry that has the most empirical verification is regarded by several prominent physicists as correctly describing the universe we inhabit. If these physicists are right, in our universe there are no parallel lines.

Which one of the following is an assumption that is required by the argument?

(A) There are no parallel lines in the non-Euclidean system of geometry that has the most empirical verification.

(B) Most physicists have not doubted the view that the universe is correctly described by the non-Euclidean system of geometry that has the most empirical verification.

(C) There are no parallel lines in every non-Euclidean system of geometry that has any empirical verification.

(D) The universe is correctly described by the non-Euclidean system of geometry that has the most empirical verification if prominent physicists maintain that it is.

(E) Only physicists who are not prominent doubt the view that the universe is correctly described the non-Euclidean system of geometry that has the most empirical verification.

Choice comes to A and C.

Any in C cannot be defended..so A
_________________

The path is long, but self-surrender makes it short;
the way is difficult, but perfect trust makes it easy.

The passage is assuming that there are no parallel lines in the non-Euclidean system of geometry that has the most empirical verification.

(A) There are no parallel lines in the non-Euclidean system of geometry that has the most empirical verification.

(B) Most physicists have not doubted the view that the universe is correctly described by the non-Euclidean system of geometry that has the most empirical verification. discard due to If these physicists are right

(C) There are no parallel lines in every non-Euclidean system of geometry that has any empirical verification. we are talking about 1 non Euc that has the most verification not all of them with verification.

(D) The universe is correctly described by the non-Euclidean system of geometry that has the most empirical verification if prominent physicists maintain that it is. discard due to If these physicists are right

(E) Only physicists who are not prominent doubt the view that the universe is correctly described the non-Euclidean system of geometry that has the most empirical verification. discard due to If these physicists are right

not C because we don't need and we dont know that is the case for every non-euclidian systems with any verification.
A is sufficient as assumption to get to the conclusion.

(A) is the only answer choice that links the premise to the conclusion.
(even though I don't fully understand what the heck a non-euclidian geometric system is. )

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