A certain approach to paraconsistency was initiated by works of R. Jennings and P. Schotch. In their “Inference and necessity” [4] they proposed a notion of a level of inconsistency (incoherence) of a given set of premises. This level is a measure that assigns to a given set of premises X, the least number of elements of covers of X that consist of consistent subsets of X. The idea of the level of inconsistency allows to formulate a paraconsistent inference relation called by the authors forcing, while the ob- tained approach preservationism. Similarly as classical inference relation is truth-preserving, the obtained inference relation is preserving the level of inconsistency. We will discuss some examples of inferences that are valid in the sense of Jennings-Schotch inference relation and rise some questions on them. Based on that we formulate an inference relation as an answer to the mentioned doubts. As regards forcing inference relation, the set of premises needed to de- rive a given conclusion can vary when changing covers from one to another. Our proposal is to stipulate to have some common set of relevant premises
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W obliczu najnowszych przemian czynników miastotwórczych Warszawa z niespójną, rozregulowaną przestrzenią miejską ma szanse obrócić swoje utrudniające życie wady w awangardowe zalety, jeśli wykorzysta rysujące się wizje miasta informatycznego.
EN
In the face of the most recent transformations of city-shaping factors, Warsaw, with her incoherent, deregulated urban space, has an opportunity to turn her unbearable flaws into avant-gardist advantages, if she exploits the emerging visions of an information city.
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