3.3ex I
Logical Truth, Falsity, Indeterminacy

Multiple Choice: Click on the correct answer and the page will jump forward to the next problem.

 

1. A truth table shows that a sentence is logically true if
a. that sentence is true on all rows of the table. b. that sentence is true on some but not all rows of the table. c. that sentence is true on no rows of the table

2. A truth table shows that a sentence is logically false if
a. that sentence is true on all rows of the table. b. that sentence is true on some but not all rows of the table. c. that sentence is true on no rows of the table.

3. A truth table shows that a sentence is logically indeterminate if
a. that sentence is true on all rows of the table. b. that sentence is true on some but not all rows of the table. c. that sentence is true on no rows of the table.

4. Truth tables show us that
a. a sentence can be both logically true and false by being true in one row and false in another. b. an argument is always logically true if it's valid. c. a sentence which is logically indeterminate can never be false. d. none of the above

 

 

 

 

 

 

 

 

 

 

 

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