Formalized Mathematics > 2013 > 21 > 4 > 273-282
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journal ISSN : | 1898-9934 , 1426-2630 |
DOI | 10.2478/forma-2013-0029 |
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Bibliography
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[1] Grzegorz Bancerek. Cardinal numbers. Formalized Mathematics, 1(2):377-382, 1990.
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[2] Grzegorz Bancerek. Cardinal arithmetics. Formalized Mathematics, 1(3):543-547, 1990.
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[3] Grzegorz Bancerek. The fundamental properties of natural numbers. Formalized Mathematics, 1(1):41-46, 1990.