Sufficient & Necessary Questions - - Question 22

Everyone who is a gourmet cook enjoys a wide variety of foods and spices. Since no one who enjoys a wide variety of f...

Emanuel-Centeno July 12, 2018

Answer Choice D

I'm lost when Naz says that we know nothing about ALL of the Pop Art painting and that there is no contrapositive transitive argument in answer choice D. I know answer choice B is correct. Answer choice D: P: PIPHC-->ANW contra: not ANW-->not PIPHC P: PAPHC--> not ANW contra ANW--> not PAPHC C: PAPHC--->not ANW contra: ANW-->not PAPHC Contra Trans Argument I see: PIPHC-->ANW-->not PAPHC Can someone tell me what I'm doing wrong or understanding incorrectly?

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Anita July 13, 2018

Hi @Emanuel-Centeno, Let me know if this makes sense to you when we put them in abbreviations:

Prompt)
GC -> EWVFS (No EWVFS -> No GC)
EWVFS -> No PBF (PBF -> No EWFS)
=
GC -> EWVFS -> No PBF (PBF -> No EWVFS -> No GC)
=
PBF -> No GC

B)
HC -> A (No A -> No HC)
IAA -> No A (A -> No IAA)
=
HC -> A -> No IAA (IAA -> No A -> No HC)
=
HC -> No IAA (IAA -> No HC)

D)
PIPHC -> AONW (No AONW -> No PIPHC)
POPHC -> No AONW (AONW -> No POPHC)
Conclusion: POP AONW -> No HC
What we can actually conclude: PIPHC -> AONW -> No POPHC (POPHC -> No AONW -> No PIPHC)

Does that help?

Emanuel-Centeno July 14, 2018

Yes thank you very much!