Some twentieth-century art is great art. All great art involves original ideas, and any art that is not influential ...

mikeheath January 24, 2020

Isn't A incorrect because it isn't supported?

Isn't A incorrect because it isn't supported? The answer choice A gives: Influential Art - Some - Original Ideas Could you say that this doesn't follow logically because the facts say: some twentieth-century art is great art?

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Ravi January 24, 2020

@mikeheath,

Let's take a look. We can diagram the stimulus:

Great art< - some - >20th century art
Great art - >Original ideas
Great art - >Influential

We can infer three things from these statements:

20th century art< - some - >Original ideas
20th century art< - some - >Influential
Original ideas< - some - >Influential

(A) says, "Some influential art involves original ideas."

(A) corresponds to the third inference we made from the stimulus. We
know that this must be true because if all great art involves original
ideas and if all great art is influential, there must be some overlap
between influential art and great ideas. I suggest reviewing the
lessons on quantifiers, as those will help you solidify your
quantifier translations more easily.

Because (A) is an inference we can draw, it's incorrect since we're
looking for the one answer choice that DOES NOT follow logically from
the stimulus.

Does this make sense? Let us know if you have any questions!

mikeheath January 25, 2020

So, some influential art involves original ideas because:

Great art - >Original ideas
Great art - >Influential
Thus, Original ideas - some- Influential? Because Great art is sufficient in both premises, original ideas and influential art have an overlap.

Skylar January 26, 2020

@mikeheath,

That is correct.

To reiterate our point, we are told that all great art involves original ideas and that all great art is influential. Therefore, the existence of great art requires at least one instance of influential art and original ideas overlapping.

Does that make sense?

gupta.bree December 5, 2020

I've read this answer and I still don't seem to understand how we deduced 'Original ideas <-some-> influential'. Could you please help with that? it would mean a lot.

rinavaleriano February 2, 2021

@ravi I follow your explanation until you get to the third deduction of Original ideas< - some - >Influential. I thought you could only combine two "most" statements, not "some."