有理数乘法
有理数乘法-
本文讨论了经典有理灰数对乘法和除法的保序性，并对经典有理灰数对乘法和除法的保序性定理进行了严格地证明。
This paper , discussed the sequence keeping of classic rational grey number for multiplication and division , and expounded and proved about classic rational grey numbers for the theorem of sequence keeping of the multiplication and the division .
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未确知有理数的概念与乘法运算
The Concept of Unascertained Rational Number and Multiplication Operation