Berrick, A. J. Ex-homotopy comparison theorems. (English) Zbl 0523.55024 J. Singapore Natl. Acad. Sci. 10-12, 52-55 (1983). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page MSC: 55U35 Abstract and axiomatic homotopy theory in algebraic topology 55P10 Homotopy equivalences in algebraic topology 18F99 Categories in geometry and topology Keywords:abstract homotopy theory; ex-map; homotopy equivalence; ex-homotopy equivalence; spaces over B PDFBibTeX XMLCite \textit{A. J. Berrick}, J. Singapore Natl. Acad. Sci. 10--12, 52--55 (1983; Zbl 0523.55024)