In: Computer Science
Use the resolution method to decide if the following formulas are valid or not. If the formula is valid, provide a resolution proof; if it is not valid, provide an interpretation which falsifies the formula.
(a) (A↔(A∧B))→(A→B)

                                                   
             

          
[distributive law and demorgans law]
                                                              
                                               
[distributive law]
                                                                          
                                                                         
[demorgans law]




Hence the given statement: 
 comes out to be true. Thus, it is valid.
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