1. Let A, B, C, and D be atomic propositions. We are given a proposition I= A^((¬A⇒B) ⇒¬(¬A^¬B)) ^ C. (a) Write the truth table of I. (b) Write the negation of I in conjuncive normal form. (c) Write I by using connectives (⇒,-) only¹. (d) Draw the switching circuit equivalent to I.

Q: answer b and c ...

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