Sentence examples for not proved substantive from inspiring English sources

Concerns regarding "permanent filler, permanent problems" have not proved substantive.

But no substantive negotiations are under way, and Mr. Sharon argues that the Palestinian leadership has not proved a credible partner in bilateral arrangements or talks.

That has not proved easy.

It has not proved easy.

Others were acquiescent, while hoping that the promised autonomy would prove substantive rather than cosmetic.

It's not proven; I don't think there's any substantive information available to me that doesn't raise as many questions as it does answers".

They are not proven".

"We started saying: Not proven, not proven, not proven".

But that is not proven.

This did not prove difficult.

It is not proving easy.