Question
1. A) Prove the following algebraic statements using truth tables. A xor B = AB + AB (where A denotes complement of A) A xnor
1.
A) Prove the following algebraic statements using truth tables. A xor B = AB + AB (where A denotes complement of A) A xnor B = AB + AB
B) Using De Morgans theorems and idempotency, show that
a. Each of the logic gates
b. Each of the logic gates
c. Do NOT submit any answer for this part: As an added aspect, think about the usefulness and potential issues arising from these relationships. (Note: To be discussed further in the lectures.) C) Prove the following Expansion Theorem in two dual forms (due to Claude Shannon) using only the postulates/axioms of Boolean Set Theory.
A. f(x1, , xk, , xN) = xk .f(x1, , 1, , xN) + xk.f(x1, , 0, , xN)
B. f(x1, , xk, , xN) = [xk + f(x1, , 0, , xN)] . [xk + f(x1, , 1, , xN)] Hint: Dont try to prove the general case, consider base cases and work from there, using substitution and other tricks.
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