# Wrong numeration using \newtheorem

by using the \newtheorem, the latex does not number the theorems in the right order.

used code is

\newtheorem{theo.a}{Proposition}
\begin{theo.a}
this is the proposition.
\end{theo.a}


changing into

\newtheorem{theo.a}{Proposition}[2]
\begin{theo.a}
this is the proposition.
\end{theo.a}


leads to a wrong output as well (Proposition 1 is replaced by Proposition .1)

• What exactly are you trying to do here? There is no counter called 2 any ways. – daleif Apr 3 '14 at 12:13
• I try to construct "Proposition 2" – user49042 Apr 3 '14 at 12:20
• You are aware that using theo.a a second time, it will print Proposition 2?!? Numbers are automatic. – daleif Apr 3 '14 at 12:23
• Your are right. I forgot to say, that I don't use them in the right order. (first prop 2, then prop 1) My fault.. – user49042 Apr 3 '14 at 12:30
• Why, wouldn't that confuse the reader? – daleif Apr 3 '14 at 12:37

Please always post complete small documents, not unusable fragments however like most latex counter constructs,

\newtheorem{theo.a}{Proposition}


defines theo.a to increment the counter before printing it so if you want to start at Proposition 42 then you just need

\setcounter{theo.a}{41}
\begin{theo.a}
this is the proposition.
\end{theo.a}