Distribution

Any term that makes a claim about the entire class of Ss is said to be distributed. The concept of distribution applies to the terms in all categorical propositions -- A, E, I, and O. We need to learn the rules for telling whether a given term is distributed or undistributed.

Distribution of subject terms

Distribution of predicate terms

Two warnings about distribution:

1. Unlike quality and quantity, distribution is not a feature of the proposition as a whole. It is a feature of its terms.

2. It is only when a term is used as the subject or the predicate of a proposition that it acquires a distribution, for only then is it being used to make a statement about all or some members of a given class.


Comprehension Questions

1 What do universal propositions distribute?
a) They distribute the subject.
b) They distribute the predicate.
2 What do negative propositions distribute?
a) They distribute the subject.
b) They distribute the predicate.
3 In a universal affirmative proposition, the subject is
a) distributed
b) undistributed
4 In a universal affirmative proposition, the predicate is
a) distributed
b) undistributed
5 In a universal negative proposition, the subject is
a) distributed
b) undistributed
6 In a universal negative proposition, the predicate is
a) distributed
b) undistributed
7 In a particular affirmative proposition, the subject is
a) distributed
b) undistributed
8 In a particular affirmative proposition, the predicate is
a) distributed
b) undistributed
9 In a particular negative proposition, the subject is
a) distributed
b) undistributed
10 In a particular negative proposition, the predicate is
a) distributed
b) undistributed


Immediate Inference

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