Benci, Vieri; Di Nasso, Mauro; Forti, Marco An Euclidean measure of size for mathematical universes. (English) Zbl 1131.03029 Log. Anal., Nouv. Sér. 50, No. 197, 43-62 (2007). In this paper the authors define the notion of (normal) Euclidean measure of size (numerosity) and provide examples of (normal) Euclidean measures of size for suitable mathematical universes in Zermelo-Fraenkel set theory ZFC. Reviewer: Nicolae A. Soare (Bucureşti) Cited in 3 Documents MSC: 03E99 Set theory 03B30 Foundations of classical theories (including reverse mathematics) Keywords:Euclidean measure PDFBibTeX XMLCite \textit{V. Benci} et al., Log. Anal., Nouv. Sér. 50, No. 197, 43--62 (2007; Zbl 1131.03029)