Question

Explain principle of duality with example?

Answer 1

The duality principle ensures that "if we exchange every symbol by its dual in a formula, we get the dual result". ... 1 = 1 : it is a true statement asserting that "true and true evaluates to true"

Answer 2

Answer:

Demorganization supports changing of the signs in the boolean expression. Hence, from a given boolean expression, we can obtain another boolean expression by replacing each plus sign with a dot and each dot sign with a plus, each 1 and 0 and each 0 and 1.

The variables must remain same during the process. The expression, so obtained, is known as dual expression of the given boolean expression and the process of conversion is termed as Principle of duality.

Eg- a + 0 = a.

     a . 1 = a.