References
- J. C. Abbott, Sets, Lattices and Boolean Algebras, Allyn and Bacon, Boston, 1969.
- S. S. Ahn and Y. H. Kim, Quotient subtraction algebras by an int-soft ideal, J. Comput. Anal. Appl. 25 (2018), 728-737.
- K. Atanassov, Intuitionistic fuzzy sets, Fuzzy sets and Systems 20 (1986), 87-96. https://doi.org/10.1016/S0165-0114(86)80034-3
- Y. B. Jun and H. S. Kim, On ideals in subtraction algebras, Sci. Math. Jpn. Online, e-2006 (2006), 1081-1086.
- Y. B. Jun, H. S. Kim and E. H. Roh, Ideal theory of subtraction algebras, Sci. Math. Jpn. Online, e-2004 (2004), 397-402.
- Y. B. Jun, Y. H. Kim and K. A. Oh, Subtraction algebras with additional conditions, Commun. Korean Math. Soc. 22 (2007), 1-7. https://doi.org/10.4134/CKMS.2007.22.1.001
-
Y. B. Jun, F. Smarandache and H. Bordbar, Neutrosophic
${\mathscr{N}}$ -structures applied to BCK/BCI-algebras, Information, (to submit). - B. M. Schein, Difference Semigroups, Comm. Algebra 20 (1992), 2153-2169. https://doi.org/10.1080/00927879208824453
- F. Smarandache, Neutrosophy, Neutrosophic Probablity, Sets, and Logic, Amer. Res. Press, Rehoboth, USA, 1998.
- L. A. Zadeh, Fuzzy sets, Inform. Control 8 (1965), 338-353. https://doi.org/10.1016/S0019-9958(65)90241-X
- B. Zelinka, Subtraction Semigroups, Math. Bohemica 120 (1995), 445-447. https://doi.org/10.21136/MB.1995.126093