MATHEMATICS I (MATEMATİK I) - (İNGİLİZCE) Dersi Sets and Numbers soru detayı:

CEVAP:

The most familiar number set is the natural numbers, denoted by N= {1, 2, 3, 4, ...}Every natural number is an integer. Every integer is a rational number. We do not consider the zero as a natural number. The sum of two natural numbers is again a natural number, whereas the difference might not be a natural number.