Uh oh! Wolfram|Alpha doesn't run without JavaScript.
Please enable JavaScript. If you don't know how, you can find instructions
here
.
Once you've done that, refresh this page to start using Wolfram|Alpha.
DNF ((B and not(C)) or D or not(B) and C and not(D)) and ( (B and not (C)) or D or (not(B) and C))
DNF ((B and not(C)) or D or not(B) and C and not(D)) and ( (B and not (C)) or D or (not(B) and C))
Natural Language
Math Input
Extended Keyboard
