Which of the following are true about validity: (select all the correct answers.)

Question options:

 

An argument with a false conclusion can be valid.

 

An argument with true premises need not be valid.

 

A valid argument always contains a disjunction.

 

When an argument is valid, if its premises were true its conclusion would be true too.

 

Any argument with true premises and a true conclusion is valid.

Question 2

Consider the following argument:

"All police officers love donuts. Pete is a police officer, so he does love donuts."

Which of the following are true?

(select all the correct answers.)

Question options:

 

The argument's conclusion may be false.

 

The argument's conclusion is a conditional.

 

The argument contains a conclusion indicator.

 

The argument is valid.

Question 3

Which of the following claims about validity are true?

(select all the correct answers.)

Question options:

 

A valid argument always has a true conclusion.

 

An argument with true premises is always valid.

 

Every argument is either valid or invalid.

 

An argument with a conditional premise is never valid.

Question 4

Consider the following argument:

"We need to lower tuition. If we do not lower tuition, then student debt loads will skyrocket. And it would be bad for student debt loads to skyrocket, since high debt loads lead to bankruptcy."

Which of the following claims are true of this argument.

(select all the correct answers.)

Question options:

 

It contains a sub-argument.

 

Its first assertion is also its conclusion.

 

It contains five assertions.

 

It contains three assertions.

Question 5

Any argument with true premises and a false conclusion is invalid.

Question options:

True

False

Question 6

Which of the following arguments have dependent premises?

(select all the correct answers.)

Question options:

 

Bob is a farmer and all farmers love vegetables, so Bob loves vegetables.

 

Bob is a farmer, and he skis in his spare time, so he is in good health. 

 

Either Bob is a farmer or his brother is a farmer, but we know that his brother was not a farmer, so Bob was a farmer.  

 

If Bob is a farmer then he probably lives in Saskatchewan. He is a farmer, so he probably lives in Saskatchewan.

Question 7

An argument with dependent premises is always valid.

Question options:

True

False

Question 8

Any argument that is not valid has a false conclusion.

Question options:

True

False

Question 9

If an argument is NOT valid, and its conclusion is true, then one if its premises must be false.

Question options:

True

False

Question 10

The following argument is not valid. 

"Pete loves donuts, so he is a philosopher."

Which of the following missing premises would make the argument valid?

(select all the correct answers.)  

Question options:

 

All philosophers love donuts.

 

Anyone who loves donuts is a philosopher.

 

If Pete loves donuts, then he is a philosopher.

 

Pete lives in Markham.