# Law School Discussion

Nine Years of Discussion
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### AuthorTopic: Formal Logic Question  (Read 1118 times)

#### kev1389

• Newbie
• Posts: 1
##### Formal Logic Question
« on: September 15, 2012, 12:31:41 PM »
Which inferences (if any) can be deduced from the following statement:

A ---> B <---- C

#### cooley3L

• Guest
##### Re: Formal Logic Question
« Reply #1 on: September 15, 2012, 12:46:49 PM »
Which inferences (if any) can be deduced from the following statement:

A ---> B <---- C
to B, or not to be.

#### SoCalLawGuy

• Full Member
• Posts: 99
##### Re: Formal Logic Question
« Reply #2 on: September 16, 2012, 04:11:40 AM »
This is telling me that 'all A are B' and 'all C are B' but I see no logical conclusions that can be made. Is there a final answer ?

#### Cambridge LSAT

• Full Member
• Posts: 30
##### Re: Formal Logic Question
« Reply #3 on: September 17, 2012, 03:17:36 PM »
We can't infer anything concrete about the relationship between A and C. The subsets of B that the two arrows lead to do not necessarily overlap.

On the other hand, the following would lead to an inference:
A <--- B ---> C

In this case we could infer that there would have to be some overlap between A and C, since some As are Bs, and those same As would necessarily be Cs.

#### cooley3L

• Guest
##### Re: Formal Logic Question
« Reply #4 on: September 17, 2012, 07:09:30 PM »
one post and gone.......either a troll or a joke alt. Wouldn't give it any further thought or expect any reply from the OP.