Define Figure
the location of the middle term in a syllogism
1st Figure
sub-prae
2nd Figure
prae-prae
3rd Figure
sub-sub
4th Figure
prae-sub
Terminological Rule 1).
There must be three and only three terms
Terminological Rule 2).
The middle term must not occur in the conclusion
Quantitative Rule 1).
If the term is distributed in the conclusion, it must also be distributed in its premise
Quantitative Rule 2).
The middle term has to be distributed at least once
Qualitative Rule 1).
No conclusion can follow two negative premises
Qualitative Rule 2).
If both premises are affirmative, the conclusion must also be
Qualitative Rule 3).
If either premise is negative, then the conclusion must also be
Define Mood
the location of the premises according to quality and quantity
The five most common categorical syllogisms
Barbara, Celarent, Cesare, Camestres, Camenes
How many valid moods are there?
19
S means what in respect to Direct Reduction
Simple Conversion
M means what in respect to Direct Reduction
Mutatio
P means what in respect to Direct Reduction
Partial Conversion
C means what in respect to Direct Reduction
Reduction by Contradiction
The Names of the Valid First Figure Syllogisms
Barbara, Celarent, Darii, Ferio
The Names of the Valid Second Figure Syllogisms
Cesare, Camestres, Festino, Baroco
The Names of the Valid Third Figure Syllogisms
Darapti, Disamis, Datisi, Felapton Bocardo, Ferison
The Names of the Valid Fourth Figure Syllogisms
Bramantip, Camenes, Dimaris, Fesapo, Fresison
What are the four things a statement needs in order to be in logical form
Subject, Predicate, Quantifier, Copula
Rule A of Translating Sentences
Identify the subject and predicate of
Rule B of Translating Sentences
Supply the missing quantifier
Rule C of Translating Sentences
Add the missing compliment
Rule D of Translating Sentences
Supply the missing copula
Rule E of Translating Sentences
Change exclusive statements to A statements
Rule F of Translating Sentences
Change negative statements into E or O statements
Rule G of Translating Sentences
Change exceptive statements into E or A statements
Rule H of Translating Sentences
Sentences containing, anyone, anything, whoever, the, if...then, or whatever, should turn into A statements
Rule I of Translating Sentences
Sentences containing, someone, something, there is, or there are should turn into I statements
What is an enthymeme
it is a syllogism that is missing either one of its premises, or the conclusion
First Order
An enthymeme missing the major premise
Second Order
An enthymeme missing the minor premise
Third Order
An enthymeme missing the conclusion