Maciej Zieliński (1940–2020) – Polish legal theorist, creator of the derivational conception of legal interpretation, expressed in the maxim omnia sunt interpretanda. Together with Zygmunt Ziembiński he co-founded the Poznań school of legal theory; his conception remains one of the two main paradigms of Polish interpretive theory.
Texts in the „Archive”
Regarding Justification of Interpretive Claims
Agnieszka Choduń · Issue 2(23)/2020
An account of the assumptions of the derivational conception and of the way interpretive claims are justified within it.
Argument from Precedent in Legal Interpretation from the Perspective of the Derivational Conception
Agnieszka Choduń · Issue 3(32)/2022
Can precedent serve as an interpretive argument in a legal culture where it is not a source of law? An answer from the derivational perspective.
Reconstructing Constitutive Rules from Legislative Acts: The Example of Pardon
Karolina Gmerek · Issue 1(46)/2026
An application of the derivational apparatus to reconstructing from a legal text the constitutive rule of a legal conventional act.
See also the Legal Interpretation and Conventionalism and Constitutive Rules collections.