February 2015
Intermediate to advanced
392 pages
17h 52m
German
Content preview from Mathematik für Wirtschaftswissenschaftler, 2nd Edition
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12 Kapitel 1. Grundlagen
1.4.6 (Spezielle Mengen reeller Zahlen) (für reelle Zahlen a und b mit a < b):
M
{iei
0 < χ < b}
(abgeschlossenes Intervall)
(a,b) {x e R
α < χ < b} (offenes Intervall)
M]
{IÉR α < χ <b} (nach links halb offenes Intervall)
[a,b)
{iei α < χ <b} (nach rechts halb offenes Intervall)
(—00,
α]
= {I€R χ < a} (nach links halb offener Strahl)
[a, oo) =
{ιεΐ
χ > a} (nach rechts halb offener Strahl)
(-00,00) =
R
(Menge aller reellen Zahlen)
usw.
1.5 Operationen mit Mengen
Die Operationen mit Mengen können auf die vier Grundoperationen Durchschnitt,
Vereinigung, Differenz und Produkt zurückgeführt werden.
1.5.1 (Durchschnit ...
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