AM - 3 - Full Adder Optimization

[@shaikrizwan7843]

At 13:37 in the lecture video, if carry bar is given to next stage why my inputs also got complemented? why not just A1 and B1??

[@Engineer884]

that'll not work. If you want to use mirror property, you need to complement all the inputs including A1 and B1 just like Co which was received as Co'.