References
- [1] Yuzhong Ding. Several classes of BCI-algebras and their properties., 15(1):1-9, 2007.
- [2] Yuzhong Ding and Zhiyong Pang. Congruences and quotient algebras of BCI-algebras., 15(4):175-180, 2007.
- [3] Tao Sun, Dahai Hu, and Xiquan Liang. Several classes of BCK-algebras and their properties., 15(4):237-242, 2007.
- [4] Zinaida Trybulec. Properties of subsets., 1(1):67-71, 1990.
Language: English
Page range: 109 - 114
Published on: Mar 20, 2009
Published by: University of Białystok
In partnership with: Paradigm Publishing Services
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© 2009 Chenglong Wu, Yuzhong Ding, published by University of Białystok
This work is licensed under the Creative Commons License.