Example in Topology I. Lines, Planes, Curves, and Planar Objects : Natural, rational, irrational and digital lines

Natural, rational, irrational and digital lines
Example in Topology I. Lines, Planes, Curves, and Planar Objects

Author : Jean-Charles PINOLI

Review date: May 7, 2021 | Lire en français

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3. Natural, rational, irrational and digital lines

Title The natural right $ℕ_{d}$

The natural line, $ℕ_{d}$ , is the set of all natural integers $ℕ$ , equipped with the discrete topology $T_{d}$ . It is sparse.

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Ongoing reading
Natural, rational, irrational and digital lines

(1) - AARTS (J.M.), NISHIURA (T.) - Dimension and Extensions, - North Holland, 331 pages (1993).
(2) - ADAMS (C.), FRANZOSA (R.) - Introduction to Topology Pure and Applied, - Pearson, 507 pages (2008).
(3)...

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