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Arguments
Relationships
Abbreviations
The Square of Opposition
Miscellany
100
It is a set of statements, one of which appears to be implied by the others.
What is an argument?
100
When two or more statements can both be true at the same time.
What is consistency?
100
It's the letter abbreviation for the major term?
What is "P"?
100
It's the particular affirmative statement in the square of opposition.
What is "Some S is P"?
100
Therefore, thus, hence, and so are called these.
What are conclusion identifiers?
200
It is the statement that appears to be supported by the premises.
What is the conclusion?
200
It's the relationship between an I and O statement in the square of opposition.
What is subcontrariety?
200
It's the letter abbreviation for the subject in the conclusion.
What is "S"?
200
It is a diagram of the basic relationships between categorical statements with the same subject and predicate.
What is the square of opposition?
200
It states "if a statement is true, then it is true."
What is the Law of Identify?
300
It is the term found in the premises but not in the conclusion.
What is a middle term?
300
When one statement implies the other, and the other implies the first.
What are two logically equivalent statements?
300
It is the abbreviation for the statement "Some S is P".
What is the letter "I"?
300
It's the statement that implies "Some dogs are not cats."
What is "No dogs are cats"?
300
It is a syllogism consisting of three statements in categorical form.
What is a categorical syllogism?
400
It has three terms, two premises and one conclusion.
What is a syllogism?
400
When one false statement implies the falsity of the other.
What is superimplication?
400
It's the abbreviation of the universal negative statement in the square of opposition.
What is the letter "E"?
400
It is the scope of its claim about the extension of the subject.
What is the quantity of a statement?
400
It is the three letter description of the types of categorical statements when a syllogism is arranged in standard order.
What is the mood?
500
It is the term found in the predicate of the conclusion.
What is the major term?
500
The positive or negative nature of its claim about the subject.
What is the quality of a statement?
500
It is the abbreviation for the term that does not appear in the conclusion of a syllogism.
What is the letter "M"?
500
This relationship states that both statements can be true but cannot both be false.
What is contrariety?
500
Who wrote the book, "Goodbye, Descartes"?
Who is Keith Devlin? (page 58)