Boolean Algebra (negation quickie)

  • Thread starter sunrah
  • Start date
  • #1
198
22
is this a valid statement

[itex]\overline{A\overline{B}} = \overline{A}B[/itex]
 

Answers and Replies

  • #2
387
8
Doesn't look valid. Verify using Truth Table.
 
  • #3
747
36
I seem to recall a rule something like not(AB) = A' + B' and not(A+B) = A'B'

Don't remember the name however.
 

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