aserto in inglese:

I don't agree with his assertion that men are safer drivers than women.

He was correct in his assertion that the minister had been lying.

I can prove my assertions

his confident assertion that he would win

to make an assertion that...

Fermat's mathematical assertion remained unconfirmed for over 350 years.

This general assertion is borne out across many studies

It is important to note that his assertion is groundless.

Nobody will believe his assertion that he is innocent.

An assertion isn't a proof.