Faculty of Mathematics, Statistics and Computer Science, College of Science, University of Tehran, I. R. of Iran
a minimal sets' approach introduced some closed right ideals of the Ellis semigroup of a
transformation semigroup which behave like minimal right ideals of an Ellis semigroup in some senses. From
1997 till now they have caused some new ideas in distality, proximal relation, transformed dimension, Here
we will compare the above mentioned ideas and will improve them.