Select the correct option(s)

Question

Accepted Answer

[p→(q→r)]→[(p→q)→(p→r)] is a tautology where p,q,r are primitive statements

Answer

[p→(q→r)]→[(p→q)→(q→r)] is a tautology where p,q,r are primitive statements

Answer

None of the option is correct

Answer

[p→(q→r)]→[(r→q)→(p→q)] is a tautology where p,q,r are primitive statements

Answer

[p→(q→r)]→[(p→q)→(r→q)] is a tautology where p,q,r are primitive statements

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