Parallel Method of Reasoning & Contrapositives

yeghid

I just have one specific question. On parallel reasoning questions, if an answer choice essentially has the same logical force, # terms, and structure as the stimulus except its conclusion is the contrapositive of the previous terms, does that disqualify it as a right answer?

For instance:

Stimulus:

A --> B;
B --> C;
Thus, A --> C

Answer choice:

D --> E
E --> F
Thus, F --> D?

CSieck3507

No it does not because the logical structure is the same. So it would be correct. However, if you have an answer choice that had the correct D->F you would have to pick that AC. But, the lsat wouldnt do that because there cant be two correct AC's.

yeghid

Thank you so much for the tip!