Boolean Algebra guidance

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chengie.teo

Joined Feb 15, 2011
3
If I have an expression A.B'.C.D + (A'+B+C+D') can I write use De Morgan's law on the 2nd part of it to become A.B'.C.D + (A.B'.C'.D)?

Is A'+B+C+D' = A.B'.C'.D??
 
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