1.
A proposition that relates two classes (or categories)
2.
(1) An "if . . . then' statement(2) a statement having a horseshoe as its main operator
3.
Valid from the Aristotelian standpoint on condition that the subject
term of the premise (or premises) denotes actually existing things
4.
The relation that exists between statements that necessarily have opposite truth values
5.
Statements that necessarily have opposite truth values
6.
An operation that consists in switching the subject and predicate terms
in a standard-form categorical proposition and replacing each with its
term complement
7.
The relation that exists between two statements that are necessarily not both true
8.
In standard-form categorical propositions, the words "are' and "are not
9.
A categorical proposition having the form "No S are P'
10.
A categorical proposition having the form "Some S are P'
11.
A formal fallacy that occurs when the conclusion of an argument depends on the contraposition of an E or I statement
12.
A formal fallacy that occurs when the conclusion of an argument depends on an incorrect application of the contrary relation
13.
A formal fallacy that occurs when the conclusion of an argument depends on the conversion of an A or O statement
14.
A formal fallacy that occurs when the conclusion of an argument depends
on an incorrect application of the subalternation relation
15.
A formal fallacy that occurs when the conclusion of an argument depends on an incorrect application of the subcontrary relation
16.
An argument having a single premise
17.
A condition that exists when a certain statement is not necessarily
either true or false, given the truth value of some related statement
18.
A diagram that illustrates the necessary relations that prevail between
the four kinds of standard-form categorical propositions as interpreted
from the Boolean standpoint
19.
A statement that denies class membership
20.
A categorical proposition having the form "Some S are not P'
21.
A phrase that, when introduced into a statement, affects the form but not the meaning
22.
A statement that makes a claim about one or more (but not all) members of a class
23.
In a standard-form categorical proposition, the term that comes immediately after the copula
24.
The attribute of a categorical proposition by which it is either affirmative or negative
25.
The attribute of a categorical proposition by which it is either universal or particular