I have the following Boolean expression that I would like to simplify. I know that I could use a Karnaugh map to simplify, but I need to use Boolean Algebra and simplify step by step.
$'$ is NOT
$+$ is OR $$AB'C+A'BC+ABD+CD'+D'$$ I was able to only get his far. $$AB'C+A'BC+ABD+D'$$
Looking on Wolfram Alpha, I see that this can be more simplified to the following, I'm unsure of what theorems to use to reduce this anymore.