Veritas Press Logic Unit Two Review

Question 1

What is a self-contradiction? (Lesson 7)

Answer 1

A self-contradiction is a statement that is false due to its logical structure.

Question 2

What is a statement? (Lesson 6)

Answer 2

a sentence that is either true or false.

Question 3

What are the possible truth values of a statement? (Lesson 6)

Answer 3

true or false.

Questions, commands, and nonsense sentences are not statements because they do not have a truth value.

Question 4

What is a Tautology? (Lesson 7)

Answer 4

A tautology is a statement that is always true by logical structure.

Question 5

What is a self-supporting statement? (Lesson 7)

Answer 5

a statement whose truth value can be determined from the statement itself.

Question 6

What are the three types of self-supporting statements? (Lesson 7)

Answer 6

Self-reports
Statements that are true or false by logical structure.
Statements that are true or false by definition

Question 7

Give an example of a self-report (Lesson 7)

Answer 7

A self report is a statement by a person concerning his own desires, beliefs or feelings.
Example: “I believe that Jesus is the Son of God”.

Question 8

What is the difference between a tautology and self-contradiction? (Lesson 7)

Answer 8

A tautology is always true by its logical structure, a self-contradiction is always false by its logical structure.

Question 9

Give an example of a statement that is false by definition. (Lesson 7)

Answer 9

A statement that is false by definition is a statement that can be seen to be false by how the sentence is put together.
Example: “Jesus is the Son of God, or He is not the Son of God”.

Question 10

LESSON 12

Answer 10

LESSON 12

Question 11

What is the difference between a supported statement and a self-supporting statement? (Lesson 8)

Answer 11

A supported statement is a statement whose truth value depends on evidence or information from outside itself.

A self-supporting statement is a statement that has immediately apparent truth values.

The distinction between the two depends upon the means by which the truth value of the statement is determined.

Question 12

What are three methods of determining the truth value of supported statements? (Lesson 8)

Answer 12

Authority
experience or observation
deduction

Question 13

Do any other methods exist? (lesson 8)

Answer 13

Yes

Isaac Watts identified six types, but this book focuses on three.