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Ivan Todorov, Kalina Durova and Aleksandar Aleksandrov

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Ivan Todorov, Kalina Durova and Aleksandar Aleksandrov

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Ivan Todorov, Kalina Durova and Aleksandar Aleksandrov

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Ivan Todorov, Kalina Durova and Aleksandar Aleksandrov

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Ivan Todorov, Kalina Durova and Aleksandar Aleksandrov

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Ivan Todorov, Kalina Durova and Aleksandar Aleksandrov

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Ivan Todorov, Kalina Durova and Aleksandar Aleksandrov

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Ivan Todorov, Kalina Durova and Aleksandar Aleksandrov

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Jan Woleński

Abstract

The paper discusses the concept of adequacy central for Pertażycki’s methodology. According to Petrażycki any valuable scientific theory should be adequate, that is, neither limping (to broad with respect its actual scope) nor jumping (too narrow with respect to its actual scope). Consequently, adequacy of a theory is a stronger condition than its truth. Every adequacy theory is true, but not conversely. However, there is problem, because scientific laws are conditionals (implications). This suggests that adequacy is too strong conditions, because the consequence of an implication has a wider scope than its antecedent. Thus, laws should have the form of equivalence. The paper shows how model-theoretic characterization of theories allows to recognize truth and adequacy, consistently with Petrażycki’s claims.

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Elena Lisanyuk and Evelina Barbashina

Abstract

In this paper we discuss L. Petrażycki’s idea of norm as a normative relation and show its repercussions in two perspectives connected to each other, in the legal theory in the framework of which it was originally introduced and where its role was straightforward, and in logic where it played a shadowy role of a fresh idea which in his expectation would have been the core of the novel logical theories capable of modelling reasoning in law and morals. We pay attention to the scholarly environment in which Petrażycki has proposed those ideas and to the unlucky fate of his academic legacy which is now being rediscovered.