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JEE Math Practice Question

The following statement $$\left( {p \to q} \right) \to \left[ {\left( { \sim p \to q} \right) \to q} \right]$$ is :

  1. A.equivalent to $${ \sim p \to q}$$
  2. B.equivalent to $${p \to \sim q}$$
  3. C.a fallacy
  4. D.a tautology

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