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Boolean Dual

Tool to calculate the dual of a Boolean logical expression. The dual being a complementary expression inverting addition and multiplication as well as 0 and 1.

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Boolean Dual -

Tag(s) : Symbolic Computation, Electronics

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Boolean Dual

Boolean Dual Calculator



Answers to Questions (FAQ)

How to calculate the dual of a boolean equation?

The dual of a Boolean or of a Boolean expression is obtained by applying 2 operations: replacing/interchanging the logical ORs by logical ANDs and vice versa and replacing/interchanging the logical 0s by logical 1s and vice versa.

Example: The dual of a+b is a.b and conversely the dual of a.b is a+b (duality principle)

It is possible that the value $ a $ itself has a dual, some note this dual $ a' $ (be careful not to confuse this notation with the boolean NOT unary operator)

How to note the dual of a boolean equation?

The dual of a boolean function $ F $ is sometimes denoted by $ Fˊ $ (not to be confused with the complement or NOT function) or $ F ^ d $.

Likewise 0 and 1 are dual, true and false are duals, and are dual.

What is the duality principle?

Every Boolean expression has a dual, the Boolean Duality principle means that every theorem or any computation has a dual equivalent.

By proving something in Boolean algebra, its dual is also proved.

Example: x+1=1 has for dual x.0=0

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Boolean Dual on dCode.fr [online website], retrieved on 2024-07-15, https://www.dcode.fr/boolean-dual

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