Intro-Chapter 1
The definition of Logic
What is the science of right thinking?
The two properties of simple apprehension
What are comprehension and extension?
The fourth component of a categorical proposition
What is the quantifier?
The four ways A,I,E and O statements can be related to one another in opposition
What are they can be contradictory to one another, contrary, subcontrary, or subalternate?
True/False: The A statement and the I statement differ in quality and quantity
What is false?
This means an argument is valid
What is when its conclusion follows logically from its premises?
The three ways we can divide up terms according to their supposition
What are according to their verbal, mental, and real existence?
This is what the quality of a proposition has to do with
What is whether it is affirmative or negative?
The Rule of Contradiction
What is contradictory statements are statements that differ in both quality and quantity?
The reason the A statement "All S is P" and the E statement "No S is P" are not subalternate
What is the A and E statements are not the same in quality, nor do they differ in quantity?
The definition of mental image
What is the image of an object formed in the mind as a result of a sense perception of that object?
The three ways terms can be divided according to their signification
What are univocal terms, equivocal terms, and analogous terms?
The definition of judgment
What is the act by which the intellect unites by affirming or separates by denying?
The First Law of Opposition
What is contradictories cannot at the same time be true nor at the same time false?
The Rule of Subcontraries
What is two statements are subcontrary if they are both particular statements that differ in quality?
The definition of simple apprehension
What is the act by which the mind grasps the concept or general meaning of an object without affirming or denying anything about it?
Define "sentient," "material," and "substance".
What is having senses, such as sight, hearing, etc.?
What is having a body rather than being purely spiritual?
What is being something rather than nothing?
This what the predicate is as we use it in judgment
What is something we are saying about the subject and what we are affirming or denying about it?
The Rule of Contraries
What is two statements are contrary to one another if they are both universal but differ in quality?
The Rule of Subalterns
What is two statements are subalternate if they have the same quality but differ in quantity?
The three types of logical processes (or acts of the mind) involved in logic
What are simple apprehension, judgment and deductive inference?
The definition of material supposition
What is when a term refers to something as it exists verbally?
What is the verbal expression of the subject of a judgment?
What is the verbal expression of the predicate of a judgment?
What is a form of the "to be" verb that connects the subject and the predicate?
The Second Law of Opposition
What is contraries cannot at the same time both be true, but can at the same time both be false?
The Fourth Law of Opposition
What is subalterns may both be true or both be false. If the particular is false, then the universal is false; if the universal is true, then the particular is true; otherwise, their status is indeterminate?