sheffer

Besides the basic properties, the relationships between generalized Riordan arrays and generalized Sheffer sequences are studied, and it is shown that the Riordan group and the group of Sheffer sequences are isomorphic.

在这里，我们不仅研究了广义Riordan阵的基本性质，而且还研究了广义Riordan阵与广义Sheffer序列的关系，并证明了Riordan群与Sheffer序列构成的群是同构的。

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Determinant algorithm of Sheffer function in partial three-valued logic

部分三值逻辑中Sheffer函数的判定算法

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As Professor Sheffer remarked an hour ago, the importance of logic to philosophy is simply the importance of basic experience.

正如谢弗教授一小时前所评论的那样，逻辑对哲学的重要性就是基本经验的重要性。

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Based on this fact, from the Sheffer sequences, many special Riordan arrays are obtained.

基于这一事实，我们由Sheffer序列得到了许多特殊的Riordan阵。

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Sheffer Function of 3-valued Logic

三值逻辑Sheffer

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