On (Alpha, Beta) Fuzzy Subalgebras of BCH-Algebras

摘要

By two relations belonging to and quasi-coincidence between fuzzy points and fuzzy sets, we define the concept of (alpha,beta)-fuzzy subalgebras where alpha, beta are any two of{in, q, invee q, inwedge q} with alpha neq inwedge q. We state and prove some theorems in (alpha, beta)-fuzzy subalgebras of BCH-algebras.