Use Euler circles to check the validity of the argument.
No politicians are honest. Some dishonest people are found out. Therefore, some politicians are found out.

The argument is __________.

A) not valid
B) valid

Question

Use Euler circles to check the validity of the argument. ​
No politicians are honest. Some dishonest people are found out. Therefore, some politicians are found out.
​
The argument is __________.
​
A) not valid
B) valid

Quizplus · Accepted Answer

The first premise states that no politicians are honest. This implies that all politicians are dishonest. 
The second premise states that some dishonest people are found out. This implies that only a subset of all dishonest people are found out, not necessarily including politicians. 
Therefore, the conclusion that some politicians are found out cannot be logically inferred from the given premises. The argument is invalid.

Use Euler Circles to Check the Validity of the Argument