# Answer to Question #38469 in Abstract Algebra for Sujata Roy

Question #38469

How many self dual functions are possible with four boolean variables?

Expert's answer

Theorem: There are 2^(2^(n-1)) different self-dual functions of n variables.

Using this theorem we get

2^(2^(4-1))=2^(2^3)=2^8=256 functions.

Answer: 256 functions.

Using this theorem we get

2^(2^(4-1))=2^(2^3)=2^8=256 functions.

Answer: 256 functions.

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## Comments

Assignment Expert21.01.14, 19:03Dear Sujata Roy,

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Sujata Roy20.01.14, 21:42Thank you.

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