Clopen — Im Teilgebiet Topologie der Mathematik ist eine abgeschlossene offene Menge (im Englischen clopen set) eine Teilmenge eines topologischen Raums, die gleichzeitig abgeschlossen und offen ist. Dies erscheint auf den ersten Blick seltsam; man muss… … Deutsch Wikipedia
Clopen set — In topology, a clopen set (a portmanteau of closed open set) in a topological space is a set which is both open and closed. That this is possible for a set is not as counter intuitive as it might seem if the terms open and closed were thought of… … Wikipedia
clopen — adjective Of a subset of a topological space, both open and closed … Wiktionary
Conjunto clopen — En topología, un conjunto clopen (o conjunto cebierto) en un espacio topológico es un conjunto que es a la vez abierto y cerrado. Ejemplos En cualquier espacio topológico X, el conjunto vacío y todo el espacio X son ambos clopen. Ahora considere… … Wikipedia Español
Conjunto clopen — En topología, un conjunto clopen (o conjunto cerrado abierto) en un espacio topológico es un conjunto que es a la vez abierto y cerrado … Enciclopedia Universal
Interior algebra — In abstract algebra, an interior algebra is a certain type of algebraic structure that encodes the idea of the topological interior of a set. Interior algebras are to topology and the modal logic S4 what Boolean algebras are to set theory and… … Wikipedia
Glossary of topology — This is a glossary of some terms used in the branch of mathematics known as topology. Although there is no absolute distinction between different areas of topology, the focus here is on general topology. The following definitions are also… … Wikipedia
Open set — Example: The points (x, y) satisfying x2 + y2 = r2 are colored blue. The points (x, y) satisfying x2 + y2 < r2 are colored red. The red points form an open set. The blue points form a closed set. The union of the red and blue points is a… … Wikipedia
Field of sets — Set algebra redirects here. For the basic properties and laws of sets, see Algebra of sets. In mathematics a field of sets is a pair where X is a set and is an algebra over X i.e., a non empty subset of the power set of X closed under the… … Wikipedia
Glosario de topología — Anexo:Glosario de topología Saltar a navegación, búsqueda Esto es un glosario de algunos términos que se usan en la rama de la matemática conocida como topología. Este glosario estará centrado fundamentalmente en lo que podemos llamar la… … Wikipedia Español
