ABSTRACT
Regarding applications, the difference between ordinary logic and non-ordinary logic lies mainly in the fact that the first attempts to reveal a determined truth using deductive processes, and then specifies what to do to change. The second uses stratagems and self-deceptions that induce a different perception of things and therefore leads to a different reaction. The logic of paradox, contradiction and belief are three classes that encompass all forms of ambivalence and self-deception and allow us to identify their operating criterion. To return to the field of therapy, the logic of belief applies successfully to those who suffer from premature ejaculation, in an intervention that usually solves the problem in one session. This is a therapeutic double bind. This is further evidence that double bind does not necessarily mean paradox. There are beliefs that are conveyed by self-deceptions that have nothing to do with a cognitive process, but are either perceptual distortions or repeated experiences that structure knowledge.
