Chapter 5: the four statements of logic Flashcards
What are we discussing in this chapter?
The classification of proposition.
What is the four categorical propositions? (Use S to represent the subject-term and P to represent the predicate-term in each proposition.)
“All S is P”; “some S is P”; “No S is P”; and “some S is not P.”
What are the letters that we use to represent each of these propositions?
A, I, E, and O.
Why is “All S is P” called an A statement?
‘A’ is the first vowel in the Latin word ‘affirmo.’
Why is “Some S is P” called an I statement?
‘I’ is the second vowel in the Latin word ‘affirmo.’
Why is “No S is P” called an E statement?
‘E’ is the first vowel in the Latin word ‘nego.’
Why is “Some S is not P” called an O statement?
‘O’ is the second vowel in the Latin word ‘nego.’
Tell whether this statement is an A, I, E, or O statement. All men are mortal.
A statement.
Tell whether this statement is an A, I, E, or O statement. Some boys are not rude.
O statement.
Tell whether this statement is an A, I, E, or O statement. No boys are rude.
E statement.
Tell whether this statement is an A, I, E, or O statement. All cars are fast.
A statement.
Tell whether this statement is an A, I, E, or O statement. Some men are mortal.
I statement.
Tell whether this statement is an A, I, E, or O statement. Some boys are rude.
I statement.
Tell whether this statement is an A, I, E, or O statement. Some men are not mortal.
O statement.
Tell whether this statement is an A, I, E, or O statement. No men are mortal.
E statement.
Tell whether this statement is an A, I, E, or O statement. No girls are pretty.
E statement.
Tell whether this statement is an A, I, E, or O statement. Some cars are not fast.
O statement.
Tell whether this statement is an A, I, E, or O statement. All boys are rude.
A statement.
Tell whether this statement is an A, I, E, or O statement. Some girls are not pretty.
O statement.
Tell whether this statement is an A, I, E, or O statement. All girls are pretty.
A statement.
Tell whether this statement is an A, I, E, or O statement. Some cars are fast.
I statement.
Tell whether this statement is an A, I, E, or O statement. No cars are fast.
E statement.
Tell whether this statement is an A, I, E, or O statement. Some girls are pretty.
I statement.
In addition to the subject-term, predicate-term, and copula, what is the fourth component of a categorical proposition?
The quantifier.
What are the four quantifiers used in categorical statements.
“All,”some,” “no,” and “some…not.”
Indicate the quantifier in this statement. All men are mortal.
All.
Indicate the quantifier in this statement. Some men are mortal.
Some.
Indicate the quantifier in this statement. No men are mortal.
No.
Indicate the quantifier in this statement. Some men are not mortal.
Some…not.
Indicate the quantifier in this statement. All men are mortal.
All.
Indicate the quantifier in this statement. Some men are not mortal.
Some…not.
Indicate the quantifier in this statement. No boys are rude.
No.
Indicate the quantifier in this statement. All cars are fast.
All.
Indicate the quantifier in this statement. Some men are mortal.
Some.
Indicate the quantifier in this statement. Some boys are rude.
Some.
Indicate the quantifier in this statement. No men are mortal.
No.
Indicate the quantifier in this statement. Some boys are not rude.
Some…not.
Indicate the quantifier in this statement. No girls are pretty.
No.
Indicate the quantifier in this statement. Some cars are not fast.
Some…not.
Indicate the quantifier in this statement. All boys are rude.
All.
Indicate the quantifier in this statement. Some girls are not pretty.
Some…not.
Indicate the quantifier in this statement. All girls are pretty.
All.