*Definition [#b63e1e57]
-A topological space (X,τ) is said to be presober iff each [[irreducible]] closed set has a unique [[generic point]].

*Property [#o00e26f5]
-sober ⇔ [[T_0]] + [[presober]].

*Reference [#ude26790]
-M.L. Colasante and D. Van der Zypen, ''Minimal R_1, minimal regular and minimal presober topologies'', Revista Notas de Matem�・tica, Vol.5(1),No. 275, 2009, pp.73-84