Mulder, H.M. - Erasmus University Rotterdam, Econometric Institute - 2007
1738, 3000 DR Rotterdam, The Netherlands
e-mail: hmmulder@few.eur.nl
Econometric Institute Report EI 2007-13
Abstract
The …(u,v) ⊆ W, for all u,v in W.
The family CR of R-convex sets in (V,σ) is an abstract convexity: it is closed under
intersections … the infinite case there is
yet another condition to be satisfied by an abstract convexity: it must be closed under
nested …