What Is?
The disposition (location) of the terms in the premises.
What is a figure in syllogisms?
A syllogism that does not contain both of the necessary premises or contains both of its premises but is missing a conclusion
What is an enthymeme?
conditional, disjunctive, and conjunctive
What are the three kinds of hypothetical syllogisms?
Two elements after either and or. For example, "Either P or Q"
What are the alternants in a disjunctive syllogism?
Not both P and Q
P
Therefore, not Q
What is a conjunctive syllogism?
Validity id easiest to recognize in first figure syllogisms.
Why do we reduce syllogisms to the first figure?
An enthymeme that is missing the major premise
What is a first order enthymeme?
Mood 1: affirming the antecedent (constructive mood, or modus ponens)Mood 2: denying the consequent (destructive mood, or modus tollens)
What are the two valid moods of conditional syllogisms?
a disjunctive statement in which only one of the alternants can be true, but not both. All four moods are valid
What is an exclusive disjunction?
The elements before and after the and. For example, Not both P and Q
What are the conjuncts in a conjunctive proposition?
quantifier, subject, copula, and predicate
What a statement must include to be a logical statement?
An enthymeme that is missing the conclusion
What is a third order enthymeme?
that studies the relationship between propositions instead of between terms
What is a hypothetical syllogism?
a disjunctive statement in which both alternates could be true. Only the first two moods are valid
What is an inclusive disjunction?
tollendo pollens, affirmation by denial: denying the first conjunct
denying the second conjunct
What are two invalid moods of a conjunctive syllogism?
direct reduction and indirect reduction
What are two Methods of reducing a syllogism?
An enthymeme that is missing the minor premise
What is a second order enthymeme?
If P, then Q
If R, then P
Therefore , if R , then Q
What is a pure conditional syllogism?
1 Place the disjunct denied in the minor premise in the place of the consequent 2 Place the denial of the other conjunct in the place of the antecedent
What is how we can reduce a disjunctive syllogism to a conditional syllogism?
Place the conjunct affirmed in the minor premise in the place of the antecedent
Place the denial of the other conjunct in the place of the consequent.
How to reduce the conjunctive syllogism to a conditional syllogism?
a to be verb that links the subject and predicate together in a logical statement
What is a copula?
" I think, therefore I am."
Who is Rene Descartes?
The Power of Love
What is the case study of Plato?
The Trilemma: The Diety of Christmas
What is the Case study of C.S. Lewis?
"You cannot serve both God and Mammon."
What is Case Study: The Bible?