In a similar interval, several areas of mathematics concluded the previous intuitive definitions of the basic mathematical objects had been insufficient for ensuring mathematical rigour.Trung bìnhS? y?u v???c s? chung l?n nh?tB?i s? chung nh? nh?tTh? t? các ho?t ??ngPhân s?H?n s?Nguyên t?S? m?C?n th?cAs a result of the systematic building of ma