Ares wrote: > Is there a way not to load a (default) package in LyX? in this case I > could load it "manually" in the preamble. Is there a way to "unload" a > package in LaTeX in the preamle?
As I already said in my previous mail: Only by _not_ using the (native)
feature.
In your case: Don't use the algorithm float. Instead, write in ERT
\begin{algorithm}
<content>
\end{algorithm}
Then you can load all packages manually in the preamble by entering:
\usepackage{float}
\usepackage{hyperref}
\floatstyle{ruled}
\newfloat{algorithm}{tbp}{loa}
\floatname{algorithm}{Algorithm}
See the attached example, where I modified your testcase accordingly.
Jürgen
P.S.: I know, the long term solution is a better package management in LyX.
The developers are aware of that, only nobody volunteered to implement it so
far.
lyxalgo.lyx
Description: application/lyx
