Please check our Instructions to Authors and send your manuscripts to nifs.journal@gmail.com. Next issue: September/October 2024.
Deadline for submissions: 16 November 2024.
User:Galia/test
Jump to navigation
Jump to search
Нека [math]\displaystyle{ A = \{ \langle x, \mu_{A+1} (x) \rangle | x \in X \} }[/math] и B = { < x, μB(x) > | x ∈ X } . Тогава A е подмножество на B, т.е. A се съдържа в B,�когато ( x X )( A(x) ≤ B(x) )