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December 2009 LSAT
All poets, aside from those who write only epigrams, have wit. All lyrical composers are poets. Azriel does not write...
on November 19, 2017
Please explain this question
on November 20, 2017
Let's take a closer look at the stimulus:
"All poets, aside from those who write only epigrams, have wit."
PR 1: P & not OWE ==> W
not W ==> not P or OWE
"All lyrical composers are poets."
PR 2: LC ==> P
not P ==> not LC
"Azriel does not write epigrams, though he is a lyrical composer."
P1: not OWE, LC
"So Azriel has wit."
Notice that P1 invokes the sufficient condition of PR 2 (because if you don't write epigrams then you obviously do not write only epigrams), allowing us to conclude P exists, which then allows us to properly conclude W because both sufficient conditions are met, i.e. P & not OWE.
This logical structure is identical to (E), which is the correct answer. Let's break down (E) just to see it clearly.
"All residential buildings are subject to the original fire code, except for those built last year."
PR 1: RB & not BLY ==> OFC
not OFC ==> not RB or BLY
"All townhouses are residential buildings."
PR 2: TH ==> RB
not RB ==> not TH
"Bloom House was not built last year, and it is a townhouse, . . . "
P1: not BLY, TH
" . . . so it is subject to the original fire code."
Notice that P1 invokes the sufficient condition of PR 2, allowing us to conclude RB exists, which then allows us to properly conclude OFC because both sufficient conditions are met, i.e. RB & not BLY.
Hope that helps! Please let us know if you have any other questions.
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