BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

Target Test Prep · GMAT

Choose how you want to prepare

Learn live with an expert or move at your own pace. Every option includes the complete TTP study system.

★★★★★5.0559 reviews
Vote for Target Test Prep, Newsweek Readers’ Choice Awards 2026
NEWSWEEK READERS’ CHOICE 2026

BIG NEWS! Target Test Prep has been nominated, and they’d love your vote!

TTP has worked incredibly hard to build the best test prep experience possible, and winning Newsweek’s 2026 Readers’ Choice Award for Best Test Prep would mean a lot to them. If TTP has helped you, they’d be incredibly grateful for your vote. You can vote once each day through September 9.

Vote for TTP
GMATLiveTeach 7 seats left
Chris Peckover
NEXT LIVE COHORT

Oct 13 to Jan 7, 2027

with Chris Peckover

Schedule
Tue, Thu · 8:00 to 10:00 PM ET
Included
40 live hours + 6 months of GMAT OnDemand
  • Live instruction and real-time questions
  • Class recordings and assigned practice
View class & enroll
Limited cohort · enrollment openTarget Test Prep
EALiveTeach 5 seats left
Logan Thompson
EXECUTIVE ASSESSMENT

Sep 6 to Dec 6, 2026

with Logan Thompson

Schedule
Sun · 9:30 AM to 12:30 PM ET
Included
40 hours of live online classes plus six months of access to the complete TTP EA OnDemand course.
  • 165+ EA Score Guarantee
  • 4,100+ Quant, Verbal, and Integrated Reasoning practice questions
  • 400+ hours of in-depth video lessons
  • 3,000+ step-by-step video solutions
View EA class & enroll
Limited cohort · enrollment openTarget Test Prep
GMATOnDemand Start anytime
SELF-PACED MASTERCLASS

Target Test Prep GMAT OnDemand

Complete access from day one. Study on your schedule.

715+ score guarantee
$0to start then $127/mo
  • Personalized study plan and analytics
  • Thousands of lessons and practice questions

Compare the format, schedule, and included access before enrolling. Prices and seat counts shown reflect the supplied offer details.

eculidean system

Expert replies
by vivek.kapoor83 » Thu Jan 01, 2009 11:09 am
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.
OA A
Join the discussion
Source: — Data Sufficiency |

Re: eculidean system

by logitech » Thu Jan 01, 2009 11:52 am
vivek.kapoor83 wrote: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.
OA A
vivek.kapoor83,

What exactly were you drinking when you posted this CR question here ? :lol:

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

This is a defender type of assumption and it eliminates the doubt one may have. If you negate this answer, you will see that conclusion will fall apart.

There are SOME parallel lines in the non-Euclidean system of geometry that has the most empirical verification.

If there are SOME // lines

The conclusion does not need to be true

If these physicists are right, in our universe there are no parallel lines.
LGTCH
---------------------
"DON'T LET ANYONE STEAL YOUR DREAM!"
Join the discussion

by vivek.kapoor83 » Thu Jan 01, 2009 10:37 pm
logitech,
i wasnt drunk...i was half slept...........Ahhh...i posted same in CR forum...after realizing this..But in option B...if u choose it also fell apart..infact im still not convinced by A. cn u explain it in better manner
Join the discussion

by cramya » Thu Jan 01, 2009 10:40 pm
Vivek,
I was torn between A and C

IMO the assumption must be something that connects parallel lines and non euclidian geometry.
Join the discussion