Robert, Pierre Théorie générale de la disjonction. (French) Zbl 0122.25503 C. R. Acad. Sci., Paris 258, 34-37 (1964). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Document Keywords:general algebraic structures PDFBibTeX XMLCite \textit{P. Robert}, C. R. Acad. Sci., Paris 258, 34--37 (1964; Zbl 0122.25503)