"Can concepts be defined in terms of sets?" . "22.16"^^ . . . "http://www.isvav.cz/h12/resultDetail.do?rowId=RIV%2F61989100%3A27240%2F10%3A86075575!RIV11-GA0-27240___"^^ . "11.08"^^ . "RIV/61989100:27240/10:86075575!RIV11-GA0-27240___" . . "Logic and Logical Philosophy" . "10"^^ . . . "0.5"^^ . . . . "20"^^ . . . "ppz-Fz00D.87e2jhqPC68s!cEhM=" . "J_neimp \u010Dl\u00E1nek v recenzovan\u00E9m \u010Dasopise, datab\u00E1ze ERIH B, I. kategorie (obory NRRE)" . .