I need to see some proof.
So, you want proof of the proof.
The above sentence was in the report, so one has to wonder why the notion that it hasn't been proven seems to counter the claim that it couldn't be proven.
It also says that since their 2023 proof, they have also provided another four such proofs.
So, in some ways one has to wonder why the notion existed that it cannot be proven.
badda-bing!