[{WikipediaArticle oldid='221173663'}] [{VerifyArticle user='leopold' template='Standard' date='14. April 2014' page-date='2014' }] [{ALLOW edit Admin}][{ALLOW view All}][{ALLOW comment All}][{ALLOW verify leopold}] %%information %%(font-size: 80%;) !!!License Information of Images on page ||Image Description||Credit||Artist||License Name||File | Diagramm zur Veranschaulichung der Zahlenmengen ℝ, ℚ, ℤ und ℕ als Untermengen voneinander. Historische Entwicklung N→Z→Q→R| Eigenes Werk| Mortalmoth| [{Image src='https://www.austria-forum.org/cc/images/slim/publicdomain.png' alt='Public domain' align='center' link='https://www.austria-forum.org/cc/public-domain-10.html' target='_blank'}]| Datei:Number-systems.svg | Wikibooks logo; Favicon is| Eigenes Werk| Bastique , Ramac et al.| [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 3.0' align='center' link='https://www.austria-forum.org/cc/by-sa-30.html' target='_blank'}]| Datei:Wikibooks-logo.svg | | | | [{Image src='https://www.austria-forum.org/cc/images/slim/by-sa.png' alt='CC BY-SA 3.0' align='center' link='https://www.austria-forum.org/cc/by-sa-30.html' target='_blank'}]| Datei:Wiktfavicon en.svg %% %%