The paper accounts for options of a useful application of modern logic to the discourse of normative disciplines. We map (selectively) a developement of interplay between logic on the one hand, and the normative discourse on the other hand in the 20th century. We find inspiration in theories explicating the notion of institutional (social) facts and appeal to a category of conative normative facts in order to successfully account for a structure of normative reasoning. It is suggested that an interiorization and acceptance of an imperative by its addressee creates a conative fact. Complex conative facts are construed as complex explicit attitudes. Logical relations among a variety of conative attitudes are taken as consequences of their different meaning. Moreover, we emphasize the importance of several praxeological principles for explaining reasoning based on norms and normative facts.