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Whole (natural) numbers

Natural numbers. Natural series. Integers.

Natural numbers    numbers, which appear as a result of calculus of single subjects:peoples, animals, birds, trees, different wares and so on. Series of natural numbers:  1,  2,  3,  4,  5,    is continued endlessly and is called  natural series.

Integers    natural numbers and zero:  0,  1,  2,  3,  4,  5, . Concept "integers" is expanded in  the section "Rational numbers" of the part "Algebra".


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