Doubt in Lecture 11 slides

[sidak]

In the lecture 11 slides about duality (page 6), shouldn't it be
L(u) = - f*(-u) - g*(A^T u), instead of the expression given there?

Thanks!

[sidak]

I guess it's probably equivalent, due to change of variables like v=-u (as in the dual function u is unconstrained)?

Thanks a lot! :)