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In this essay, you will find everything related to categorical logic: examples, definition of a categorical proposition, and more.
What Is Categorical Logic?
Categorical logic is a type of deductive logic that is based on four propositions. These propositions are statements, which categorize members of different classes on the basis of their connection to each other. The first categorical proposition has a form of all S is P, where S is the subject category, and P is a predicate category ( Categorical propositions, 2017). This type of statement has a universal quantity and a positive quality because it assures that all members of one category are included in another class.
Categorical Logic Examples
For example, the phrase all women are people is a categorical statement of the first type. The second categorical proposition is also a universal statement, but it has a negative quality no S is P ( Categorical propositions, 2017). A phrase no mice are people can be given as an example of this proposition, because no mice can be attributed to the category of people.
The other two propositions show a connection between a particular quantity of objects to a category. First of all, an affirmative statement, some S is P, denotes that some of the objects from one category can be attributed to another group ( Categorical propositions, 2017).
For instance, some people are women means that while some people can be women, not all people are female. Finally, the fourth categorical proposition is a negative statement some S is not P ( Categorical propositions, 2017). This proposition can be seen in the phrase some people are not women, which shows that people can be women, but not all of them are.
Why Is It Important to Understand Categorical Logic?
It is important to understand categorical logic because it allows one to make certain logical statements. According to Copi, Cohen, and McMahon (2016), these arguments have a solid foundation and are usually considered valid. The application of this logic can help to form an opinion and become a basis for every problem solution process. This logic can assist in resolving personal arguments or establishing moral grounds in controversial professional issues. For example, making such claims as some patients have different beliefs and all patients are equal provides a firm basis for developing a tolerant environment in providing equal treatment for every person.
References
Categorical propositions. (2017). Web.
Copi, I. M., Cohen, C., & McMahon, K. (2016). Introduction to logic (14th ed.). New York, NY: Routledge.
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