[[1] Jiri Adamek, Horst Herrlich, and George E. Strecker. Abstract and Concrete Categories: The Joy of Cats. Dover Publication, New York, 2009.]Search in Google Scholar
[[2] Grzegorz Bancerek. Cardinal numbers. Formalized Mathematics, 1(2):377–382, 1990.]Search in Google Scholar
[[3] Grzegorz Bancerek. The ordinal numbers. Formalized Mathematics, 1(1):91–96, 1990.]Search in Google Scholar
[[4] Grzegorz Bancerek. The well ordering relations. Formalized Mathematics, 1(1):123–129, 1990.]Search in Google Scholar
[[5] Grzegorz Bancerek. Zermelo theorem and axiom of choice. Formalized Mathematics, 1 (2):265–267, 1990.]Search in Google Scholar
[[6] Grzegorz Bancerek and Krzysztof Hryniewiecki. Segments of natural numbers and finite sequences. Formalized Mathematics, 1(1):107–114, 1990.]Search in Google Scholar
[[7] Francis Borceaux. Handbook of Categorical Algebra I. Basic Category Theory, volume 50 of Encyclopedia of Mathematics and its Applications. Cambridge University Press, Cambridge, 1994.]Search in Google Scholar
[[8] Czesław Byliński. Introduction to categories and functors. Formalized Mathematics, 1 (2):409–420, 1990.]Search in Google Scholar
[[9] Czesław Byliński. Functions and their basic properties. Formalized Mathematics, 1(1): 55–65, 1990.]Search in Google Scholar
[[10] Czesław Byliński. Functions from a set to a set. Formalized Mathematics, 1(1):153–164, 1990.]Search in Google Scholar
[[11] Czesław Byliński. Partial functions. Formalized Mathematics, 1(2):357–367, 1990.]Search in Google Scholar
[[12] Czesław Byliński. Some basic properties of sets. Formalized Mathematics, 1(1):47–53, 1990.]Search in Google Scholar
[[13] Agata Darmochwał. Finite sets. Formalized Mathematics, 1(1):165–167, 1990.]Search in Google Scholar
[[14] F. William Lawvere. Functorial semantics of algebraic theories and some algebraic problems in the context of functorial semantics of algebraic theories. Reprints in Theory and Applications of Categories, 5:1–121, 2004.]Search in Google Scholar
[[15] Saunders Mac Lane. Categories for the Working Mathematician, volume 5 of Graduate Texts in Mathematics. Springer Verlag, New York, Heidelberg, Berlin, 1971.]Search in Google Scholar
[[16] Beata Padlewska. Families of sets. Formalized Mathematics, 1(1):147–152, 1990.]Search in Google Scholar
[[17] Marco Riccardi. Object-free definition of categories. Formalized Mathematics, 21(3): 193–205, 2013. doi:10.2478/forma-2013-0021.10.2478/forma-2013-0021]Search in Google Scholar
[[18] Andrzej Trybulec. Enumerated sets. Formalized Mathematics, 1(1):25–34, 1990.]Search in Google Scholar
[[19] Zinaida Trybulec. Properties of subsets. Formalized Mathematics, 1(1):67–71, 1990.]Search in Google Scholar
[[20] Edmund Woronowicz. Relations and their basic properties. Formalized Mathematics, 1 (1):73–83, 1990.]Search in Google Scholar
[[21] Edmund Woronowicz. Relations defined on sets. Formalized Mathematics, 1(1):181–186, 1990.]Search in Google Scholar
