We develop the theory of smooth principal bundles for a group G, using framework diffeological spaces. After giving new examples showing why arbitrary cannot be classified, we define D-numerable bundles, analogs numerable from topology, and prove that pulling back bundle along smoothly homotopic maps gives isomorphic pullbacks. then structures on Milnor’s spaces EG BG, show → BG is bundle, it c...

Šolski etimološki slovar slovenskega jezika 2022 ('Learner's Etymological Dictionary of Slovene 2022') is based on the need to provide younger users, who as yet lack sufficient linguistic and historical background gain insight into history prehistory words they use a daily basis. With this in mind, etymological explanations are provided simplified manner without compromising scholarly veracity....