Monteiro, António Caractérisation de l’opération de fermeture par un seul axiome. (French) Zbl 0060.39406 Port. Math. 4, 158-160 (1945). Fragliches Axiom lautet: \(\overline X \cup Y\cup\overline Y\subset\overline{X\cup Y}\) für alle Teilmengen \(X, Y\). Reviewer: G. Aumann Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 4 Documents MSC: 54-XX General topology Keywords:topology PDFBibTeX XMLCite \textit{A. Monteiro}, Port. Math. 4, 158--160 (1945; Zbl 0060.39406) Full Text: EuDML