Ordinal sucesor (Spanish Wikipedia)

Analysis of information sources in references of the Wikipedia article "Ordinal sucesor" in Spanish language version.

refsWebsite

Global rank Spanish rank

2books.google.com

3^rd place

7^th place

books.google.com

Cameron, Peter J. (1999), Sets, Logic and Categories, Springer Undergraduate Mathematics Series, Springer, p. 46, ISBN 9781852330569 ..
Devlin, Keith (1993), The Joy of Sets: Fundamentals of Contemporary Set Theory, Undergraduate Texts in Mathematics, Springer, Exercise 3C, p. 100, ISBN 9780387940946 ..