Leerboek voor schoolgebruik (Gymnasium B en H.B.S. 5 j.c. B)I. Scherpe hoekenII. Willekeurige hoekenIII. FunctiesIV. Algemeen geldige formulesV. Goniometrische vergelijkingenVI. Goniometrische tafelsVII. Rechthoekige driehoekenVIII. Scheefhoekige driehoekenIX. Betrekkingen tussen goniometrische verhoudingen van twee of meer hoekenX. Scheefhoekige driehoeken (Vervolg)XI. Merkwaardige lijnen in de driehoek. OppervlakkenXII. Goniometrische vergelijkingen (Vervolg)XIII. Meetkundige toepassingenXIV. ...

Introduction to Set Theory and Topology

The Paul Carus LecturesPerceiving and LearningBreaking into LanguageReferring to Objects

1. (Generalized) topological spaces2. Neighborhood spaces3. Accumulation points interior exterior and boundary of a set closed sets and open sets4. Topological spaces5. Topological base6. Continuous mappings of a space into a space homeomorphisms7. Topologization of a set by a mapping8. Separtion axioms classification of spaces by means of the separtion axioms9. Topologization of a set by means of a real distance metric spaces10. Topologization of a set by the uniform topology Efremovich's proxi...