\texttt{Assumption} tutor now suggests to close the second goal (that
states that $2 \neq 0$) by applying the hypothesis $H$.
No useful suggestions, instead, are generated for the main goal
$2*x = 2*((x+1)*(x+1)-1-x*x)*2^{-1}$.
\texttt{Assumption} tutor now suggests to close the second goal (that
states that $2 \neq 0$) by applying the hypothesis $H$.
No useful suggestions, instead, are generated for the main goal
$2*x = 2*((x+1)*(x+1)-1-x*x)*2^{-1}$.