... definition of ≤,wegetzn= zp=4foralln ≥ p. Thus, we have z = 4 and zn≤ z for alln ∈ N. Now, suppose that zn= 6 for alln∈ N. In this case, we get z = 6, and zn≤ z for alln∈ N. Thus, we ... contributionsJKK and HKN conceived the study and participated in its design and coordination. JKK suggested many good ideasthat are useful for achievement this paper and made the revision. HKN and BS ... space and f, g : X ® X.Ifw = fx = gx ,for some x Î X,thenx is called a coincidence point of f and g,andw is called a point ofcoincidence of f and g.Thepair{f, g} is said to be compatible if and...