title: How would de Morgan's law apply to ((A.B)`.B)`
body: <p>I am at the start of my A-level computing course, but I have gotten stuck on de Morgan's law,
  If we have the expression  (pronounced: Not(A And B) And B all Not) How would de Morgan's law apply to that?
  And can anyone explain me how you handle the Not(A And B) part when the entire thing is notted?</p>
  
  <p>Thanks in advance</p>
  
  <p><img src="https://i.stack.imgur.com/yPG4q.jpg" alt="write-up of the formula here"></p>