Introduction
The Definition of Logic
What is the science of right thinking?
The act of seeing or hearing or smelling or tasting or touching.
What is sense perception?
The two properties of simple apprehension.
What are comprehension and extension?
The two properties of a term.
What are Signification and Supposition?
The act by which the intellect unites by affirming or separates by denying.
What is judgment?
He is considered the Father of Logic.
Who is Aristotle?
The image of an object formed in the mind as a result of a sense perception of that object.
What is a Mental Image?
The completely articulated sum of the intelligible aspects or elements (or notes) represented by a concept.
What is comprehension?
These terms are applied to different things but have related meanings.
What are analogous terms?
A sentence or statement which expresses truth or falsity.
What is a proposition?
A correspondence of a statement to reality. (God is truth!)
What is truth?
Another word for "idea" in simple apprehension.
What is Concept?
The name of the chart whereby we determine the notes of a term.
What is the Porphyrian Tree?
Terms that have exactly the same meaning no matter when or how they are used.
What are univocal terms?
The element of a proposition that is a form of the verb "to be."
What is the copula?
The term that indicates that a conclusion follows logically from its premises.
What is validity?
The process by which a simple apprehension is derived from a sense perception and mental image.
What is abstraction?
The relationship between comprehension (the number of notes) and extension.
What is the greater number of notes, the less extension it has?
Terms that, although spelled and pronounced exactly alike, have entirely different and unrelated meanings.
What are equivocal terms?
The term that includes everything that is said about the subject.
What is the predicate term?
The term used to indicate that all the premises in an argument are true and the argument is valid.
What is Soundness?
The act by which the mind grasps the concept or general meaning of an object without affirming or denying anything about it.
What is simple apprehension?
We find this by asking, "To what does the concept refer?"
What is extension of a concept?
This kind of supposition refers to something as it exists verbally.
What is material supposition?
The form in which all three elements of a proposition are shown clearly.
What is logical form?