Curator: Our museum displays only

Answer choices

1. A

   Too Strong: every3% picked this

   Every print in the museum store is of a work that is either on loan to the museum from a private collector or

   We don't have any conditional rules that start with "if print is available in museum store". We only have that idea as an outcome. in permanent collection ? available in museum store It's possible that some print in the museum store is from the store owner's 10 year old daughter, which is neither a work on loan to the museum or a work that's part of the museum's permanent collection.

   3%
2. B

   Too Strong: every7% picked this

   Every print that is sold in the museum store is a copy of

   We don't have any conditional rules that start with "if print is sold in museum store". We only have that idea as an outcome. in permanent collection ? sold in museum store It's possible that some print in the museum store is from the store owner's 10 year old daughter, which would mean that some prints sold in the store are from 21st century works.

   7%
3. C

   Correct61% picked this

   There are prints in the museum store of every work that is displayed in the museum and not on

   Why this is right

   This answer is a quite a mouthful, but it is ultimately just combining the 1st and 2nd sentences. The word "every" shows us the trigger idea: Displayed in museum and ? ~on loan from collector Let's pause there and ask ourselves if we would know anything. If it's displayed in the museum, then we know it's a 20th century work that's either on loan from a private collector or in the museum's permanent collection. So if it's "on display, but not on loan", then it would have to be a 20th century work that is in the museum's permanent collection. The 2nd sentence says that everything in the permanent collection is available as a print in the museum store. So, yes, this answer is saying something true. If it's "on display, but not on loan", then it's from the permanent collection, and all of those have prints available in the museum store. We could try to represent this formally, but it would probably be much harder and less likely than just going from the answer choice's trigger and seeing where it takes us. Whenever we have a conditional like A ? B or C then you could choose to re-write that as A and ~B ? C A and ~C ? B So if we re-wrote our original conditional on display ? on loan or perm collection in this form, on display and ~on loan ? perm collection then we could chain this together with the 2nd sentence: on display museum's prints available and ? permanent ? in the museum ~on loan collection store

   Skill tested: Must be True · how this choice captures the argument's function is the move to repeat next time.

   61%
4. D

   Unsupported22% picked this

   Hopper’s Nighthawks is both a twentieth-century work and a work on loan to the museum

   We weren't able to derive any additional facts about Nighthawks because the two things we know about it "not part of permanent collection" and "available in museum store" don't trigger any other knowledge.

   22%
5. E

   Unsupported7% picked this

   Hopper’s Nighthawks is not displayed in

   We weren't able to derive any additional facts about Nighthawks because the two things we know about it "not part of permanent collection" and "available in museum store" don't trigger any other knowledge.

   7%