Grundgesetze der Arithmetik.¹ The origins of the antinomy have been studied with great circumspection, and the impossibility of Frege's attempted "Way Out" has been demonstrated, with essential participation of Polish logicians.² Yet, there is no unanimity as to the ultimate cause of the deadlock up to now, and no full comprehension of Frege's wavering between some hope for a conclusive repair of his system and the relinquishment of all hope for a secure foothold of our talk about classes, extensions of concepts, or—in his own terminology—courses-of-values. Reflection on the dilemma Frege found himself facing is certainly not out of place." /> The extension of the concept abolished? - Thiel Christian | sdvig press