張雁磊
摘 要 實(shí)數(shù)[1]的7個(gè)基本定理以不同形式刻畫(huà)了實(shí)數(shù)的連續(xù)性,它們彼此等價(jià)。雖同一定理都可用其它6個(gè)定理證明,但有的證明是類似的,本文給出這些定理證明的典型方法。
關(guān)鍵詞 實(shí)數(shù) 連續(xù)性 基本定理 等價(jià)
中圖分類號(hào):O174.5 文獻(xiàn)標(biāo)識(shí)碼:A DOI:10.16400/j.cnki.kjdkx.2017.12.015
Abstract The 7 basic theorems of real number [1] describe the continuity of real numbers in different forms, and they are equivalent to each other. Although some other theorems can be proved with 6 other theorems, some of them are similar. This paper gives a typical method to prove these theorems.
Keywords real number; continuity; basic principle; equivalence
參考文獻(xiàn)
[1] L.W.Cohen The structure of the real number system[M].Pricton,1965.
[2] 同濟(jì)大學(xué)數(shù)學(xué)系.微積分[M].高等教育出版社,2010.
[3] 裴禮文.數(shù)學(xué)分析中的典型問(wèn)題和方法[M].高等教育出版社,2006.endprint