Glossary
The science of right thinking
What is logic
All S is P vs. Some S is not P
What is a contradictory statement
What are the four statements of logic?
A, I, E, O
All S is P, Some S is P, No S, is P, Some S is not P
Which statement is:Distributed - Undistributed
What is an A statement, affirmative and universal.
There must be three and only three terms
What is rule number one in the rules for validity.
When a syllogism is valid and has all true premises.
What is soundness
All S is P vs. No S is P
What is a contrary statement
Term, Proposition, and Syllogism.
What is the verbal expression
Which statement is: Undistributed - Undistributed
What is an I statement. Affirmative, particular
No conclusion can follow from two negative premises.
What is rules number 5, rules of validity.
The _________ of a proposition has to do with whether it is affirmative or negative.
What is quality
Some S is P vs. Som S is not P
What is a subcontrary statement
The term that is the subject of the conclusion
What is the minor term (S)
Which statement is Distributed - Distributed
What is an E statement. Negative, universal.
If a term is distributed in the conclusion, then it must be distributed in the premises.
Rule number 3, rules of validity.
The __________ of a proposition has to do with whether it is universal or particular.
What is quantity
No S is P vs. Some S is not P
What is a subaltern statement
Change the quality and negate the predicate.
What is obversion
Which statement is: Undistributed - Distributed
What is an O statement. Negative, particular
If the two premises is affirmative, then the conclusion must be affirmative.
Rule number 6, rules of validity.
The status of a term in regard to its extension.
What is distribution.
No S is P vs. Some S is P
What is a contradictory statement
The term that is the predicate of the conclusion
What is the major term (P)
Some men are not blind is an example of what kind of statement.
What is an O statement. Negative, particular.
The middle term must be distributed at least once
Rule number 4, rules of validity.