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Hypergroupoids and fundamental relation
1994In this work we study hypergroupoids whose β-relation is transitive, by using the fundamental relations β, β*, δ and δ*. We take several examples, finding the necessary and sufficient conditions such that a quasi-hypergroup has β*=β=δ=δ* (i.e. it is of kind T_1).
openaire +1 more source
Economic Fundamentalism: Its Relation to Agriculture
Journal of Farm Economics, 1962openaire +2 more sources

