yet in othr words
say x is a (0/1) signal
x -> x is a 'wire'
x -> y is a negator (wherey y is negated x) (name it ! like !x)
x -> x else x->0 (depending on key) is a fader (?)
may be also like combinations like unconditional fader (x->0) or conditional negator
if the key + input denote as a '+' (where signal is x) possibly 4 types of gates can be written
k+x = x/0
k+x = x/1
k+x = x/x
k+x = x/!x
k+x = !x/0
k+x = !x/1
k+x = !x/x
k+x = !x/!x
k+x = 0/0
k+x = 0/1
k+x = 0/x
k+x = 0/!x
k+x = 1/0
k+x = 1/1
k+x = 1/x
k+x = 1/!x
16 combinations but are jinda reducable to passthru, negation and fixed 0
all in all talking using AND OR XOR i found kind unapropriate if someone may talk on passthru neg or fixed