Name the three mental acts.
Simple Apprehension, Judgement, Deductive Inference.
Name the Verbal Expressions
Term, Proposition, Syllogism
A: All S is P
I: Some S is P
E: No S is P
O: Some S is not P
Define Quality
Whether a statement is affirmative or negative
Define Quantity
Whether a proposition is Universal or Particular
A: Affirmative, Universal
I: Affirmative, Particular
E: Negative, Universal
O: Negative, Particular
A: Distributed, Undistributed
I: Undistributed, Undistributed
E: Distributed, Distributed
O: Undistributed, Distributed
Three terms of a syllogism
Minor term, major term, middle term
Define each term of a syllogism
Minor: Subject of the conclusion
Major: Predicate of Conclusion
Middle: Appears in both premises but not the Conclusion.
Define Major and Minor Premise
Major: contains the major term
Minor: contains the minor term
How do you obvert a statement?
1. Change the quality of the statement
2. Negate the predicate
How do you convert a statement?
Interchange the subject and the predicate.
How do you Contrapose a statement?
1. Obvert the statement.
2. Convert the statement.
3. Obvert the statement.
Draw the diagram of distribution.
A Contraries E
Contradictories
Subalterns (criss cross ) subalterns
I Subcontraries O
Name the 2 terminological rules.
1. There must be three and only three terms.
2. The middle term must not occur in the conclusion.
What is the third rule of validity?
If a term is distributed in the conclusion, then it must be distributed in the premise.
What is the fourth rule of validity?
The middle term must be distributed at least once.
What is the fifth rule of Validity?
No conclusion can follow from two negative premises.
What is the sixth rule of validity?
If the two premises are affirmative, the conclusion must also be affirmative.
What is the seventh rule of validity?
If either premise is negative, the conclusion must also be negative.
All Adams are chairs.
All Chairs are sat on.
Some things you sit on are not Adams.
Rule VI
Which rule is broken?
Some vans are not creepy.
All Creepy things are Colin.
Therefore, some vans are Colin.
Rule VII
What rule is broken?
All Julias are vicious things.
All Julias are girls.
Therefore, some girls are vicious things.
Valid
What rule is broken?
All Dauphins like math.
Some nerds are not Dauphins.
Therefore, some nerds do not like math.
Rule III
What rule is broken?
No Mexicans are legal people.
Some Jacks are not legal people.
Therefore, some Jacks are not Mexican.
Rule V