I would like to label the hypotheses in my thesis similar to equations (e.g., the first hypothesis in chapter 3 should be “H-3.1”). Also similar to equations, I would like to reference these hypotheses.
What I got so far is the following (which is based on this answer):
\documentclass{book}
\newcounter{hypCNT}
\newcommand{\hypCnt}[2]{\refstepcounter{hypCNT}\label{#1}H-\arabic{chapter}.\arabic{hypCNT}}
\begin{document}
\chapter{Lorem}
Hypotheses: \\
Pigs can fly (\hypCnt{hyp:H1}) \\
The world is a disk (\hypCnt{hyp:H2})\\
Hypotheses \ref{hyp:H1} on page \pageref{hyp:H1}
\end{document}
Which leads to:
Chapter 1
Lorem
Hypotheses:
Pigs can fly (H-1.1
The world is a disk (H-1.2Hypotheses 1 on page 1
This solution is close but not exactly what I would like to have. Actually I would like the H-\arabic{chapter}
to be part of the label. Of course I could define another \newcommand{\refHyp}
also containing the H-\arabic{chapter}
part. However, if I would reference a H-label out of another chapter I would get the chapter number of the current chapter and not the one I am actually referencing to.
Another strange thing: Why does the closing bracket disappear behind the \hypCnt{}
?
Any ideas appreciated a lot!
Best Answer
Apart from the use of you hypothesis construction, the following is a better suit for what you're after:
Note the use of
\thechapter
rather than\arabic{chapter}
. This is to let the reference be dependent on whatever type of representation is used for thechapter
counter, rather than explicitly stating it will be\arabic
. Such recursive/dependent usages is common when dealing with sub-counters.Consider reading up on Understanding how references and labels work where it is discussed what happens with a call to
\label{..}
. What is stored for future reference is\@currentlabel
, which is set based on the last\refstepcounter
's representation -\the<cnt>
. Hence the fact that I've updated the way the counter looks via\thehypCNT
.