Liste des Groupes | Revenir à s logic |
On 2025-06-22 15:41:23 +0000, WM said:The natural numbers are well-ordered, from the first to the last which is subtracted. Does this change if all can be subtracted?
On 22.06.2025 11:37, Mikko wrote:In general there needs not be a first or a last. For example, the set
>As I already said, only what was there was removed.>
There is a first removed element. If the removal is complete, then there is a last removed element.
difference of real numbers and irrational numbers is rational numbers.
But there is no first or last in irrational numbers.
Les messages affichés proviennent d'usenet.