 |
Bajnok, Béla An invitation to abstract mathematics. 2nd ed. Cham, Switzerland : Springer, 2020. xvi, 442 p. -- (Undergraduate texts in mathematics) QA39.3 A55 2020 |
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Bajnok, Béla An invitation to abstract mathematics. 2nd ed. Cham, Switzerland : Springer, 2020. xvi, 442 p. -- (Undergraduate texts in mathematics) QA39.3 A55 2020 |