The set of statements, one of which appears to be implied or supported by the others.
What is argument?
100
An argument that uses both hypothetical and categorical statements.
What is a mixed hypothetical syllogism?
100
A statement that reverses the subject and predicate. It is only valid for E and I.
What is the converse?
100
A statement of the opposite quality with a negated predicate. It is valid for all statements.
What is the obverse?
200
A deductive argument with two premises and three terms.
What is a syllogism?
200
The statement which appears to be implied or supported by the others.
What is the conclusion of an argument?
200
The condition, the part following "if."
What is the antecedent of a hypothetical statement?
200
A statement which can be inferred directly from another statement
What is immediate inference?
200
The set of all terms not included in the given term. Thus, the term P is non-P.
What is the complement?
300
Major Premise
Minor Premise
Conclusion
What is the standard order for writing a syllogism?
300
therefore, thus, so, consequently, hence, clearly
What are the conclusion indicator words?
300
Modus ponens and modus tollens.
What are the two valid hypothetical syllogisms?
300
An argument in which a statement is unstated and assumed. Specifically, it is a syllogism with one assumed statement.
What is an enthymeme?
300
A statement that reverses and negates both the subject and predicate of the original. It is valid for A and O.
What is a contrapositive?
400
A term that, within a statement, refers to all members of its class.
What is a distributed term?
400
The ones that appear to be doing the implying.
What are premises?
400
Affirming the consequent and Denying the antecedent.
What are two invalid mixed hypothetical syllogisms?
400
A statement that affirms an outcome based on a condition. It has the form If P then Q.
What is a hypothetical statement?
400
A word, a relative pronoun or adverb, that refers to a broad range of things or times. Examples are: whoever, whatever, wherever, whenever, however, always, and never.
What is an inclusive?
500
A syllogism of the same form as the original, but with obviously true premises and a false conclusion, in order to show the original to be invalid.
What is counterexample?
500
The result of the condition, the part after the "then."
What is the consequent?
500
This Latin phrase translates as "It does not follow" in English.
What does non sequitur mean?
500
An argument that uses only hypothetical statements.
What is a pure hypothetical syllogism?
500
Words that set boundaries, referring only to a limited class of things.