I was reading through the BOOLEAN ALGEBRA chapter and found what I believe to be a type in the sub-chapter "Converting truth tables into Boolean expressions".
More specifically : http://www.allaboutcircuits.com/vol_4/chpt_7/9.html
On the line that says :
"A far better solution would be to design the system so that the valve is commanded to open if any only if all three sensors detect a good flame"
I believe it should say [..] to open if and only if [..]
Gotta say I love your e-book btw. It's so awesome and comprehensive for something that's free.
More specifically : http://www.allaboutcircuits.com/vol_4/chpt_7/9.html
On the line that says :
"A far better solution would be to design the system so that the valve is commanded to open if any only if all three sensors detect a good flame"
I believe it should say [..] to open if and only if [..]
Gotta say I love your e-book btw. It's so awesome and comprehensive for something that's free.