What is your answer?

A formal logical principle is a principle of inference expressible using only variables and logical terms.

<= back | menu | forward =>
Directions: Click on a number from 1 to 2.
























 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

























1 is correct!

A formal logical principle is a principle of inference expressible using only variables and logical terms.

This is an example -- since it's expressed using only variables ("A," "B," and "C") and logical terms ("all" and "is"):

    All A is B
    All B is C
    So all A is C

<= back | menu | forward =>
Before continuing, you might try some wrong answers.
























 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

























2 is wrong. Please try again.

A formal logical principle is a principle of inference expressible using only variables and logical terms.

<= back | menu | forward =>
























 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

























the end