Kan, Daniel M. Abstract homotopy. II. (English) Zbl 0071.16702 Proc. Natl. Acad. Sci. USA 42, 255-258 (1956). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 4 ReviewsCited in 17 Documents MSC: 55Pxx Homotopy theory Keywords:topology Citations:Zbl 0065.38601 PDFBibTeX XMLCite \textit{D. M. Kan}, Proc. Natl. Acad. Sci. USA 42, 255--258 (1956; Zbl 0071.16702) Full Text: DOI