Definition 3.3. Let (X; gX) and (Y; gY ) be generalized topological
spaces. Then a function f : X ! Y is said to be almost (g; g0)-continuous if
it is almost (g; g0)-continuous at every point of X.
Remark 3.4. From the above denition of almost (g; g0)-continuity, we
have the following implications but the reverse relations may not be true in
general:(g; g0)-continuous ) almost (g; g0)-continuous ) weakly (g; )-continuous.
Example 3.5. (1) Let X = fa; b; c; dg. Consider two generalized topolo-gies g1 =©;; fag; fa; bg; fb; cg; fa; b; cgª
and g2 =©;; fa; cg; fb; cg; fa; b; cgªon X. Dene f : (X; g1) ! (X; g2) as follows: f(a) = b, f(b) = f(d) = d,
f(c) = c. Then f is obviously almost (g; g0)-continuous but it is not (g; g0)-continuous.
(2) Let X = fa; b; c; dg.
Consider two generalized topologies g1 =©;;fa; b; cg; fdg;Xªand g2 =©;; fa; cg; fa; c; dg; fb;c; dg; fdg;Xªon X, and the
identity function f : (X; g1) ! (X; g2). Then f is weakly (g; g0)-continuous
but it is not almost (g; g0)-continuous.
Theorem 3.6. Let f : X ! Y be a function on the generalized topologicalspaces (X; gX) and (Y; gY ).
Then the following are equivalent:
(1) f is almost (g; g0)-continuous.
(2) f¡1(V ) j ig(f¡1¡ig¡cg(V )¢¢) for every g-open subset V in Y .