Papert, D. Congruence relations in semi-lattices. (English) Zbl 0126.03802 J. Lond. Math. Soc. 39, 723-729 (1964). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 ReviewCited in 30 Documents Keywords:ordered sets, lattices PDF BibTeX XML Cite \textit{D. Papert}, J. Lond. Math. Soc. 39, 723--729 (1964; Zbl 0126.03802) Full Text: DOI