Agreed. The tautology (A=A) is the fundamental statement of logic. In the beginning was the Logos, and the Logos was with God, and the Logos was God.
...as dictionary.com puts it:...
I don't think God here is either needlessly repetitious or is He making a vacuous statement.
Take it up with dictionary.com, if that is an accurate and complete quote of their definition of tautology. God's revealed name, I AM THAT I AM, is a tautology.
I don't want to quibble anymore about this. I defined what I am using as the definition of the word "tautology." I have no need to take it up with anyone else.
SD