Online text: www.jirka.org/ra/
Additional inspected sections: 3.4 Uniform continuity and 7.5 Continuous functions.
Whole-book author: Jiří Lebl; no separately credited chapter author is established. These HTML sections are undated. The author landing page dates the downloadable PDF version 6.3 to 15 May 2026; that version date is not assigned to the HTML.
Cited passages: §3.4.1, Definition 3.4.1 and Theorem 3.4.4; §3.4.2, Lemma 3.4.5; §3.4.3, Proposition 3.4.8 and Example 3.4.10; §7.5.4, Definition 7.5.10 and Theorem 7.5.11.