Writing
\begin{align*}
&& a &= b\\
\Leftrightarrow&& b &= c\\
\Leftrightarrow&& c + 2 &= 3 + 5\\
\Leftrightarrow&& d + c + 1 &= 4 + 11 + 12
\end{align*}
gives
.
Every \Leftrightarrow
should be centred, everything left to the equals sign should be ragged left and everything right of the equal sign should be ragged left.
The huge white space, obviously, is a problem for me. How can I solve this issue (especially if I use align
instead of align*
)? Using the tabular
environment as stated in a solution to another question that I asked, I am afraid, will not help.