Boolean inequations

In this paper we consider Boolean inequations i.e. the inequations of the form f(X)≠0f(X)≠0, where ff is a Boolean function. The basic idea in this paper is: the inequation f(X)≠0f(X)≠0 means that there exists pp such that f(X)=pf(X)=p and p≠0p≠0. We give the formula which determines all the solutions of Boolean inequation.