cmos design method?

Question

i am a student taking the subject of "ic design".
as far as i know, in static cmos design, the pull up network and pull down network do not have the same structure. if the pull up network implements the function F, then the pull down network will impliment the function F bar.
but from the library of the design software, i saw a design where the pull up network has the structure same as the pull down network. both the network is facing each other like a mirror. i can't figure out how it work.
how can i get a boolean equation from this? can someone help me out?
thx

Answer 1

This should have gone in the Engineering section.
You are more likely to get an answer there.
Try that.

Answer 2

I'm going for a pint