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摘要： right now we have the president as the incumbent versed prospective vile,disgusting villainess boisterous racism can you do four more years with this 阅读全文

摘要： https://www.ixigua.com/6867171438361575950/ to help stem the tide of the pandemic 'innovative how in the world does that happen? it clears everything 阅读全文

摘要： \(\sqrt{3+\sqrt{5}} - \sqrt{3-\sqrt{5}}\) 方法一：两边平方后再开方 \(方法二：原式=\sqrt{\frac{1}{2}(6+2\sqrt{5}}) - \sqrt{\frac{1}{2}(6-2\sqrt{5}})\) \(\quad=\sqrt{ \fr 阅读全文

摘要： prove: by "contiunuous function has local boundry",\(\forall x\in [a,b]\) exists a \(\delta\) and M, for all \(x\in\U(x;\delta)\),x$\leqslant<M$ the s 阅读全文

摘要： prove: suppose S is a non-empty set having upperbound number set by Archimedes property, for any positive number \(\alpha\),exists a integer,it makes 阅读全文

摘要： 交 \(A\cap B\) 并 \(A\cup B\) 包含 \supset 空集 \(\emptyset$\)\emptyset$ 不等号 \neq 阅读全文

摘要： note:all the 6 theorems are applicable only over real number field, other than rational umber. cause they are incorrect in it NO.1 theorem of closed n 阅读全文

摘要： 闭区间套： \(设[a_{n},b_{n}]为实数域内的闭区间，n\in N^+,且a_{n}\supset a_{n+1}\) \(lim_{n\to\infty}(a_{n}-b{n})=0\) \(则，存在唯一一个实数\xi\in 所有闭区间[a_{n},b_{n}]\) 确界定理：设A为实数 阅读全文

摘要： 实数理论 阿基米德性 戴德金分划 戴德金定理 实数六大定理 1 戴德金定理->确界原理 2 确界原理。。。实数六大定理互推 数列 数列的基本特性 各种定理 函数特性，连续性 阅读全文

摘要： 鲁病案号1357324 阅读全文