PHIL 109 11/26

Is the following syllogism valid or invalid?

All P are M

Some M are S

Some S are P

• Valid

• Invalid, undistributed middle term

• Invalid, illicit minor term

• Invalid, illicit major term

Is the following valid or invalid?

No P is M

All S are M

No S is P

• Valid

• Invalid, undistributed middle

• Invalid, illicit minor term

• Invalid, one negative premise

Is the following valid or invalid?

All M are P

All M are S

All S are P

• Valid

• Invalid, undistributed middle term

• Invalid, illicit minor term

• Invalid, illicit major term

What kind of categorical proposition only distributes the predicate term?

• A

• E

• I

• O