Upcoming SlideShare
×

# LOGIC--Section 3.7

1,111 views

Published on

0 Likes
Statistics
Notes
• Full Name
Comment goes here.

Are you sure you want to Yes No
• Be the first to comment

• Be the first to like this

Views
Total views
1,111
On SlideShare
0
From Embeds
0
Number of Embeds
2
Actions
Shares
0
8
0
Likes
0
Embeds 0
No embeds

No notes for slide

### LOGIC--Section 3.7

1. 1. Unit II LOGICSection 3.7: Argument and Truth Tables<br />
2. 2. What is an argument???<br />An argument consists of TWO parts!<br />Premises given statements<br />Conclusion decision reached<br />
3. 3. True or not…that is the QUESTION!<br />Valid Argument : If premises are true, the conclusion is true<br />Invalid Argument (fallacy): argument that isn’t true<br />
4. 4. Testing the Validity of a Statement<br />Use TRUTH TABLES!!!<br />An argument is valid if the statement is a tautology (basically the last column of the truth table is true)<br />
5. 5. Types of Valid Arguments<br />
6. 6. Types of Invalid Arguments<br />
7. 7. Example :<br />1. <br />
8. 8. SOLUTION Example :<br />1. Fallacy of inverse invalid <br />Solution using TRUTH TABLE:<br />
9. 9. SOLUTION Example :<br />1. Fallacy of inverse invalid <br />Solution using TRUTH TABLE:<br />
10. 10. SOLUTION Example :<br />1. Fallacy of inverse invalid <br />Solution using TRUTH TABLE:<br />
11. 11. SOLUTION Example :<br />1. Fallacy of inverse invalid <br />Solution using TRUTH TABLE:<br />
12. 12. SOLUTION Example :<br />1. Fallacy of inverse invalid <br />Solution using TRUTH TABLE:<br />Since the second row of the last column is FALSE, the statement is a fallacy, or INVALID <br />