Question

Identify the components of the A, E, I and O standard-form claims (or propositions).

Using the diagram in your text as a guide, create one original example using an ordinary statement and translating it into standard-form claims (A, E, I and O statements) using the Square of Opposition. Identify the translation and claims in your example using the corresponding letter.

a. For each corresponding standard-form claim, explain how you identified the translation and corresponding claims and their relationship to one another based on the relationships depicted on the square. In other words, explain why each choice of claim in your example is correct for that particular relationship.

Answer 1

Four kind categories of opposition:

A : Universal affirmative

Example:

All women are elephant.

E: Universal negative:

Example:

No men are doctor

I: Particular affirmative:

Example:

Few cats drink milk

Some digs are black

O: Particular negative:

Example:

Few people not believer.

A,E,I,O:

S - Subjective category, P- Predictive category.

A: all S are P

E: no S are P

I: some S are P

O: some S are not P

1. Contrary:

Contrary is a relationship between two opposition, when they can not be true. Immediate intervention made one is true and another must be false.

2. subcontrary:

Subcontrary logic related such that can not both be false at once, although both may be true together.

3. Sub alternation:

Immediate intervention made between A and I.

A: Every S is P

E: No S is P

I: some S is P

O: some S is not P