Which logical fallacy is this: A is a C, B is a C, therefore A is a B?

3

Does this kind of logical fallacy have a name?

Apples are fruit.
Oranges are fruit.
Therefore, apples are oranges.

I'm guessing it's a particular kind of statistical syllogism?

DanB

Posted 2019-02-28T15:39:00.683

Reputation: 183

Answers

5

It is the Fallacy of the undistributed middle:

All Apples are Fruit

All Oranges are Fruit

Therefore, all Apples are Oranges

is clearly invalid.

Mauro ALLEGRANZA

Posted 2019-02-28T15:39:00.683

Reputation: 33 575

1

I believe that is the fallacy of undistributed middle. The middle or shared term or class, "fruit", remains undistributed in either premise. For a more complete discussion of this fallacy, you could take a look at this brief introduction.

Benjamin

Posted 2019-02-28T15:39:00.683

Reputation: 11