We assume that the imperative reasoning is a reasoning containing at least one step which is an imperative (or rather its content). At the same time, we understand the term "imperative" as a synonym of "imperative sentence". We assume that in its main usage, imperatives express a certain volitional act: namely, a will of realizing a certain state of affairs. In our opinion, such characterization is related to the contents of imperatives; we call these contents "prescriptions", remembering that in untypical usages prescriptions are not expressed by imperatives. Traditional approach to the processes of reasoning takes into account only these mental processes steps of which are declaratives or declarative sentences (or rather their cont...