Class (set theory) (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Class (set theory)" in English language version.

refsWebsite

Global rank English rank

6^th place

6^th place

low place

low place

low place

low place

archive.org

Bertrand Russell (1903). The Principles of Mathematics, Chapter VI: Classes, via Internet Archive

heldermann.de

Herrlich, Horst; Strecker, George (2007), "Sets, classes, and conglomerates" (PDF), Category theory (3rd ed.), Heldermann Verlag, pp. 9–12

metamath.org

us.metamath.org

abeq2 – Metamath Proof Explorer, us.metamath.org, 1993-08-05, retrieved 2016-03-09