Q:
      
      
         
            
Consider the following statements
P : Suman is brilliant
Q : Suman is rich
R : Suman is honest
The negation of the statement "Suman is brilliant and dishonest if and only if Suman is rich" can be expressed as
1)  
2)     
3)    
4) 
         
       
      
      
      
          
      
      
          Answer & Explanation
         Answer: D) 4         
         
Explanation: Suman is brilliant and dishonest is   P ~ R
Suman is brilliant and dishonest iff suman is rich is
Q   (P  ~ R)
 
Negative of statement is expressed as
~ (Q (P  ~ R)).
       
      
      
      
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