Purchase Solution

Modern Square of Opposition

Not what you're looking for?

Ask Custom Question

Use the Modern Square of opposition to determine whether the following inferences are valid. (To do this, state the type of proposition each is and show how the one does or doesn't imply the other.)

a. No country music singers are musicians who despise twang.
Therefore, some country music singers are not musicians who despise twang.
Valid or invalid?

b. It is false that all food fights are occasions for flinging pie.
Therefore, some food fights are not occasions for flinging pie.
Valid or invalid?

c. It is false that no bungie jumpers are persons with a death wish.
Therefore, some bungie jumpers not persons with a death wish.
Valid or invalid?

d. Some logic instructors are lacto-ovo vegetarians.
Therefore, it is false that no logic instructors are lacto-ovo vegetarians.
Valid or invalid?

Purchase this Solution

Solution Summary

The modern square of opposition is analyzed. The occasion for flinging pies are given.

Solution Preview

Use the Modern Square of opposition to determine whether the following inferences are valid. (To do this, state the type of proposition each is and show how the one does or doesn't imply the other.)

a.

No country music singers are musicians who despise twang.

This is a universal negative proposition.

Conclusion:
Some country music singers are not musicians who despise twang.

This is a particular negative proposition.

Inference is invalid; propositions are not contradictories. (Consider ...

Purchase this Solution


Free BrainMass Quizzes
Descartes Meditations on First Philosophy

Short quiz relating to Descartes

The World Health Organization

This quiz assesses the students knowledge about the World Health Organization. Although listed under “Philosophy” it is relevant to health care, political science, pre-med, and social scientist students as well.