References
- S. M. Hong and Y. B. Jun, Anti fuzzy ideals in BCK-algebras, Kyungpook Math. J. 38 (1998), 145-150.
- Y. Huang, BCI-algebra, Science Press, Beijing, 2006.
-
Y. B. Jun, On (
${\alpha},{\beta}$ )-fuzzy ideals of BCK/BCI-algebras, Sci. Math. Jpn. 60 (2004), 613-617. -
Y. B. Jun, On (
${\alpha},{\beta}$ )-fuzzy subalgebras of BCK/BCI-algebras, Bull. Korean Math. Soc. 42 (2005), 703-711. https://doi.org/10.4134/BKMS.2005.42.4.703 -
Y. B. Jun, Fuzzy subalgebras of type (
${\alpha},{\beta}$ ) in BCK/BCI-algebras, Kyungpook Math. J. 47 (2007), 403-410. - Y. B. Jun, S. S. Ahn and E. H. Roh, Energetic subsets and permeable values with applications in BCK/BCI-algebras, Appl. Math. Sci. 7(89) (2013), 4425-4438.
- J. Meng and Y. B. Jun, BCK-algebras, Kyungmoonsa Co. Seoul, 1994.
- V. Murali, Fuzzy points of equivalent fuzzy subsets, Inform. Sci. 158 (2004) 277-288. https://doi.org/10.1016/j.ins.2003.07.008
- P. M. Pu and Y. M. Liu, Fuzzy topology I, Neighborhood structure of a fuzzy point and Moore-Smith convergence, J. Math. Anal. Appl. 76 (1980), 571-599. https://doi.org/10.1016/0022-247X(80)90048-7
- L. A. Zadeh, Fuzzy sets, Inform. Control, 8 (1965) 338-353. https://doi.org/10.1016/S0019-9958(65)90241-X