Definitions
Two statements that are logically the same.
What is Equivalence?
Is the following sentence in logical form? (Answer yes/no): "Some dogs run fast."
No.
Identify the following sentence as A, I, E, or O. Then, identify the quality and quantity.
"No frogs are snakes."
What is: E; Negative Universal?
How do we know whether the subject-term is distributed or undistributed?
What is If it is universal = distributed, if it is particular = undistributed. (Therefore A & E are distributed and I and O are undistributed in the S-term).
The relationship of opposition between A and O statements.
What is Contradictory?
Statements that have the same subject and predicate, but differ in quality, quantity, or both.
What is Opposition?
Is the following sentence in logical form? (Answer yes/no): "My friends are kind to animals."
Yes.
Identify the following sentence as A, I, E, or O. Then, identify the quality and quantity.
"All pickles are cucumbers."
What is: A; Affirmative Universal?
Tell whether the S and P terms are distributed or undistributed in the following sentence:
"No ice cream is cheesy."
What is S: Distributed; P: Distributed?
The relationship of opposition between A and E statements.
What is Contrary?
Whether a statement is universal or particular.
What is Quantity?
Identify the subject, the predicate, and the copula in the following sentence: "All cows are grass-eaters."
S: cows, P: grass-eaters, C: are
Identify the following sentence as A, I, E, or O. Then, identify the quality and quantity.
"Some clouds are not gray."
What is: O; Negative Particular?
Tell whether the S and P terms are distributed or undistributed in the following sentence:
"Some trees are gigantic."
What is S: Undistributed; P: Undistributed?
Tell whether the following statements are equivalent (Answer yes/no):
"All men are animals" and "All non-animals are not men."
Yes.
A sentence or a statement which expresses truth or falsity.
What is Proposition?
How do you know whether a sentence is in logical form?
If you can clearly distinguish a subject, a predicate, and a copula.
Identify the following sentence as A, I, E, or O. Then, identify the quality and quantity.
"Some people are not friendly."
What is: O; Negative Particular?
Tell whether the S and P terms are distributed or undistributed in the following sentence:
"Some pigs are not pink."
What is S: Undistributed; P: Distributed?
The relationship of opposition between E and O statements.
What is Subaltern?
The status of a term in regards to its extension.
What is Distribution?
The type of word that is considered a copula.
What is A form of "to be"?
Identify the following sentence as A, I, E, or O. Then, identify the quality and quantity.
"Some rectangles are squares."
What is: I; Affirmative Particular?
How do we know whether the predicate-term is distributed or undistributed?
What is If it is affirmative = undistributed, if it is negative = distributed. (Therefore A & I are undistributed and E and O are distributed in the P-term).
The 3 steps of Contraposition.
What is Obvert, convert, and obvert again?