Abstract
What are natural numbers? Two kinds of activity made our ancestors face the necessity of occupying themselves with numbers; this led to the development of cardinal and ordinal numbers.
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© 1975 VEB Bibliographisches Institut Leipzig
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Gellert, W., Gottwald, S., Hellwich, M., Kästner, H., Küstner, H. (1975). Fundamental operations on rational numbers. In: Gellert, W., Gottwald, S., Hellwich, M., Kästner, H., Küstner, H. (eds) The VNR Concise Encyclopedia of Mathematics. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-6982-0_2
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DOI: https://doi.org/10.1007/978-94-011-6982-0_2
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-011-6984-4
Online ISBN: 978-94-011-6982-0
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