Kopecek, O. Die arithmetischen Operationen für Kategorien. (German) Zbl 0332.18001 Scripta Fac. sci. natur. Univ. Purkynianae Brunensis, Math. 3, No. 1, 23-36 (1973). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 18A05 Definitions and generalizations in theory of categories 08B20 Free algebras 06A06 Partial orders, general PDFBibTeX XML