Linked Glossary of Terms
(references to De Wijsbegeerte der Wetsidee, unless indicated. See concordance for correlation with pages in the New Critique. The concordance is in pdf format.)

irreducibility I, 67
reduction I, 8 (in Husserl), 84 (in idealism)

The aspects or law-spheres have sphere-sovereignty. they cannot be reduced to each other. Antinomy is the contradiction that arises when we try to reduce one aspect to another. It leads to a religious dialectic, a polar opposition between two aspects or sets of aspects.

In his early works, Dooyeweerd sometimes refers to reduction as ‘denaturalization.’ See Henderson: Illuminating Law.