Which of the Six Rules for determining the validity of categorical syllogism does the following categorical syllogism violate?:
All members of the National Rifle Association are persons opposed to gun control.
All members of the National Rifle Association are law-abiding citizens.
Therefore, all law-abiding citizens are persons opposed to gun control.

Question

Which of the Six Rules for determining the validity of categorical syllogism does the following categorical syllogism violate?:

All members of the National Rifle Association are persons opposed to gun control.

All members of the National Rifle Association are law-abiding citizens.

Therefore, all law-abiding citizens are persons opposed to gun control.

Answer

If
one premise is negative,
the conclusion must be negative; and if the conclusion is negative, then one
premise must be negative.

Answer

The
middle term must be distributed
at least once.

Answer

If
a term is distributed
in the conclusion, the it must be distributed in the premise.

Answer

No
syllogism can have two negative
premises.

Answer

A
syllogism must have only three terms
(not three words, but terms).

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