Question

In: Computer Science

Use the resolution method to decide if the following formulas are valid or not. If the...

  1. 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)

Solutions

Expert Solution

                                                   

             

           [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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