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December 1995 LSAT
No projects that involve historical restorations were granted building permits this month. Since some of the current ...
on August 9, 2015
Can you explain why C wouldn't be correct.
on August 29, 2015
Let's diagram this:
"No projects that involve historical restorations were granted building permits this month."
So: if it was a project that involved historical restoration, then it was not granted building permits this month.
P1: IHR ==> not GBP
GBP ==> not IHR
"some of the current projects of the firm of Stein and Sapin are historical restorations,"
"at least some of Stein and Sapin's projects were not granted building permits this month."
C: S&S-some-not GBP
Here we have a valid argument that has combined Q1 to P1 like so: S&S-some-IHR ==> not GBP to conclude S&S-some-not GBP.
We are looking for the answer choice that has a similar pattern of reasoning.
Let's diagram answer choice (C):
"None of the new members of the orchestra have completed their paperwork."
So: if it is a new member of the orchestra, then they have not completed their paperwork.
P1: NMO ==> not CP
CP ==> not NMO
"Since only those people who have completed their paperwork can be paid this week,"
So: if you were paid this week, then you have completed your paperwork.
P2: PTW ==> CP
not CP ==> not PTW
"at least some of the new members of the orchestra are likely to be paid late."
Before we get into the reasoning of the argument, we can tell by the structure, that it is not similar to the argument in the passage. The argument in the passage uses a Sufficient & Necessary statement and a Quantifier statement to conclude a Quantifier statement, whereas answer choice (C) uses two Sufficient & Necessary statements to conclude a Quantifier statement.
Clearly, answer choice (C) does not have a similar pattern of reasoning to the argument in the passage.
Hope that helps! Please let us know if you have any other questions.
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