0 not simply one thing or another: --
Non-binary identities have been recognized for millennia by cultures and societies around the world.
Some people who are non-binary experience their gender as both male and female, and others experience their gender as neither male nor female.
We really need a different working system, a non-binary one that doesn’t make you choose between a career and taking time out to have kids.
A non-binary channel would be capable of transmitting more than 2 symbols, possibly even an infinite number of choices.
Also in 2013, people with non-binary gender identities received formal protection from discrimination, with the addition of a new attribute gender identity to anti-discrimination law.
A predicate is basically a binary-valued function of non-binary variables.
The extension of this concept to non-binary classifications yields the confusion matrix.
Note that in all non-binary cases, separate error correction polynomial has to be computed as well.
The use of fuzzy logic is especially relevant in gene regulatory networks, as the modeling of protein binding strength often requires non-binary variables.
The main conclusion that can be extracted is that the non-binary representation seems to be more appropriate for this problem.
However, arc consistency in the non-binary formulation is a stronger property than arc consistency in the binary formulation.