i asked you a pretty "computable" question: what exactly do these words mean?
> I am certain their Navier-Stokes proof is incorrect.
> I am certain their Navier-Stokes proof is incorrect.
Unless you want the negate the certainty part, but then the nudge to gambling is less coherent.
you might want to think a little bit harder on this
(X and Y) => Z
<=>
~Z => (~X or ~Y)