tautologous

To say that, if it increases, his wages increase is to be simply tautologous.

The phrase pre-established harmony is, strictly speaking, tautologous.

Or if the first expression be preferred, the second may be omitted, as perfectly tautologous.

I am (to adopt a phrase which is to me tautologous) an orthodox Jew.'

And the tautologous, useless nature of the hypothesis in the second forces the theory back to the first view.