7-segment logic

I've posted this everywhere else, might as well put it here as well. I was struck with the urge to see what digits and displayed on a 7-segment LED would look like applied to each other with binary logical operators. No particular reason other than being on an exercise bike a lot and staring at the display, doing my normal focus before/focus behind eye tricks with the digits. It made me curious what the results would look like, and would any of them result in a completely unique new set of characters. Not immediately impossible, since there are 2^7=128 possible characters to work with. Could you use this to represent an arithmetical operator?


NOR: Super sparse. Not very interesting.

( The other six are here, increasing order of interest )