Statements and Definitions
A sentence that can be either true or false.
What is a statement?
What are:
1. Questions
2. Commands
3. Nonsense
The four Standard Catagorical Statements are...
What are:
A - All S is P. E - No S is P. I - Some S is P.
O - Some S is not P.
All kids are crazy.
Some kids are crazy.
What is sub implication? A and O stmts
Two statements that can be true at the same time.
A statement whose truth value can be determined by the statement itself.
What is a self-supporting statement?
A supported statement can be supported these three way...
What are:
1. Authority (book or person)
2. Experience/Observation
3. Deduction
The Quantity on the Top of the Square of Opposition and the Quantity on the Bottom of the Square of Opposition.
What is Universal (Top) and What is Particular (Bottom)?
All parents are old people.
Some parents are not old people.
What is Contradiction? A and O stmts
A real disagreement is...
What is a disagreement with an actual inconsistency?
A statement based on someones own desires, beliefs, or feelings. Always considered true.
What is a self-report?
The truth or falsity of one statement has no bearing on the truth value of the other.
What are Independent Statements?
Statements A and O and Statements E and I are...
What is Contradictory (a contradiction)?
Some kids like candy.
All kids like candy.
What is Superimplication? I and a stmts
An apparent disagreement is...
What is a difference of opinion or perception (based on self-reports)?
Tautology means...
What is a statement that is always true by logical structure?
Two Statements that cannot be true at the same time.
What are Inconsistent Statements?
Statements A and E are _________
and Statements I and O are __________...
What is Contrariety (top) and Subcontrariety (bottom)?
No grass is blue.
Some grass is blue.
What is contradiction? E and I stmts
A Verbal disagreement...
What is a misunderstanding due to differing definitions of one or more words?
A statement that is false by its logical structure.
The one basic verb that is required for a valid statement is...
What is the TO BE verb or copula (am, are, is, was, were, being, been)?
Statements on the Left (A and I) are ______ Quality
and Statements on the Right (E and O) are _______ Quality.
What are Affirmative (left) and Negative (right)?
All dialectic B students are students who love logic.
Some dialectic B students are students who love logic.
What is Subimplication? A and I stmts
No Christians are Buddhists. No Buddhists are Christians.
These Statements are an example of a. Implication b. Independence c. Logical Equivalence
What is C? (Logical Equivalence - They imply one another)