Question

10. Which is true of the standard form categorical syllogism?

a) Middle term must be in figure 1

b) At least one of the statements must be affirmative.

c) Major premise should be written first and then minor premise follows.

d) The syllogism is always valid.

11. A Venn diagram for a syllogism has three overlapping circles with ___ clearly distinguishable areas.

a) 5

b) 6

c) 7

d) 8

12. Which area is shaded on the Venn diagram of the following syllogism?

Some M are not P.

All S are M.

Therefore, some S are not P.

a) left side of S circle outside P

b) left side of S circle outside M

c) left side of M circle outside P

d) left side of P circle outside S

13. If a syllogism is invalid from Boolean standpoint and has universal premises and a particular conclusion, we can adopt the Aristotelian standpoint and look in the Venn diagram to see if

a) the conclusion is affirmative

b) there is a circle that is all shared but one area

c) at least one premise is negative

d) an X occurs in a circle representing the major term

Answer 1

10. The correct answer is Option C. Major premise should be written first and then minor premise follows.

11. The correct answer is Option C. There are 7 distinguishing circles.

12. The correct answer is Option B. The left side of S circle outside M.

13. The correct answer is Option D. We can check if an X occurs in a circle representing the major term.