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    • On kan's condition 

      Ruiz Salguero, Carlos; Ruiz, Roberto; Frias, S.
      In the category    Δo Ens   ,   of the simplicial sets, there exists a "Unit interval" : the simplicial set   Δ[1],     with extremities   εi : Δ[0] → Δ[1] (i = 0, 1) ([1], [2] ). On the other hand, since in   Δo Ens, ...
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Matemáticas.