Chapter 6
Contradictories cannot be true and false at the same time.
What is the First Law of Opposition?
The quantifier.
What is the fourth component of categorical proposition?
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?
The two relationships categorical statements can have to one another.
What is opposition and equivalence?
Two characteristics of categorial statements.
What is quality and quantity?
The completely articulated sum of the intelligible aspects or elements (or notes) represented by a concept.
What is comprehension?
Theses 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?
Statements that differ in both quality and quantity.
What is a Contradictory Statement?
Whether a proposition is universal or particular.
What is the quantity of a proposition?
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 Copula?
When two statements differ in quality but are both universals.
What is the Rule of Contraries?
The quality of a statement.
What is affirmative and negative?
The relationship between comprehension (the number of notes) and extension.
Terms that although spelled and pronounced exactly alike, have entirely different and unrelated meanings.
What are equivocal terms?
The term that includes everything we are saying about the subject.
What is the predicate-term?
Contraries cannot at the same time both be true, but can at the same time both be false.
What is the Second Law of Opposition?
"All" is intended for statements that do not contain a quantifier unless "some" is clearly indicated.
What is the rule for distinguishing universal statements?
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?