Am Sat, 17 Apr 2010 19:54:05 +0200 schrieb iustifico:
> I am using "book (KOMA-script)" as documentclass and I want to
> enumerate my propositions, definitions etc. by subsection, like this:
>
> I. Section
> I.1 Subsection
> Definition I.1.1
> Proposition I.1.2
You can use the chngcntr package to control which counters get reset when
and where. For example in my preamble I use
\usepackage{chngcntr}
\counterwithout{footnote}{chapter}
for continuous numbering of footnotes across chapter boundaries.
So you could use something like \counterwithin*{defn}{subsection} etc.,
substituting "defn" for the names of all the environments whose counter you
want to redefine.
Philipp