Kurtz, David C.
Foundations of abstract mathematics
McGraw-Hill, 1992
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Beaumont, Ross A.
The Algebraic foundations of mathematics
Addison-Wesley, 1963
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Fletcher, Peter
Foundations of discrete mathematics
PWS-Kent, 1990
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Foundations of discrete mathematics
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Colyvan, Mark
An introduction to the philosophy of mathematics
Cambridge University Press, 2012
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