## On derivations of BCI-algebras.(English)Zbl 1044.06011

The authors study BCI-algebras. The main contribution in this paper is the introduction of the notion of a derivation for BCI-algebras, which is defined in a way similar to the notion in ring theory. This is done by using the cap-operation and the BCI-product. Also, many properties related to the derivations are developed. In particular, the authors study the regular derivation in detail, they give a characterization of regular derivations and characterize the p-semisimple BCI-algebras. This is a quite intesting paper for those who study BCI-algebras.
Reviewer’s remark: The abelian group structure of a p-semisimple BCI-algebra was first given by T. D. Lei and the reviewer [Math. Jap. 30, 511–517 (1985; Zbl 0594.03047)], not in [9] of the references in the paper.

### MSC:

 06F35 BCK-algebras, BCI-algebras

Zbl 0594.03047
Full Text:

### References:

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