109 (عدد): الفرق بين النسختين

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</ref><ref>{{harvtxt|Carothers|2000}} says: "ℕ is the set of natural numbers (positive integers)" (p. 3)</ref><ref name="Mac Lane & Birkhoff 1999 p15">{{harvtxt|Mac Lane|Birkhoff|1999}} include zero in the natural numbers: "Intuitively, the set {{math|ℕ {{=}} {{mset|0, 1, 2, ...}}}} of all "natural numbers" may be described as follows: {{math|ℕ}} contains an "initial" number 0; ...". They follow that with their version of the Peano Postulates. (p. 15)</ref>. يلي العدد [[108 (عدد)|108]] ويسبق العدد [[110 (عدد)|110]] وهو [[عدد طبيعي]] موجب.

== مراجع ==

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