Hjelmslev's geometry of reality
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During the first half of the 20th century the Danish geometer Johannes Hjelmslev developed what he called a geometry of reality. It was presented as an alternative to the idealized Euclidean paradigm that had recently been completed by Hilbert. Hjelmslev argued that his geometry of reality was superior to the Euclidean geometry both didactically, scientifically and in practice: Didactically, because it was closer to experience and intuition, in practice because it was in accordance with the real geometrical drawing practice of the engineer, and scientifically because it was based on a smaller axiomatic basis than Hilbertian Euclidean geometry but still included the important theorems of ordinary geometry. In this paper, I shall primarily analyze the scientific aspect of Hjelmslev's new approach to geometry that gave rise to the so-called Hjelmslev (incidence) geometry or ring geometry.
Original language | English |
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Journal | Historia Mathematica |
Volume | 54 |
Pages (from-to) | 95-116 |
ISSN | 0315-0860 |
DOIs | |
Publication status | Published - 2021 |
- Axiomatization, Descriptive geometry, Didactics, Geometric constructions, Geometry of reality, Johannes Hjelmslev
Research areas
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