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I’m using the \newtcbtheorem in tcolorbox package to produce my environments for theorem, lemma and proposition. I want these three environements be numbered by a same counter, producing a result like

Theorem 1.1

Proposition 1.2

Lemma 1.3

Theorem 1.4

So I write essentially

\newtcbtheorem[number within=section]{theorem}{Theorem}{}{th}
\newtcbtheorem[use counter=tcb@cnt@theorem, number within=section]{proposition}{Proposition}{}{pr}
\newtcbtheorem[use counter=tcb@cnt@theorem, number within=section]{lemma}{Lemma}{}{le}

However, when I want to refer these using \cref in cleveref package, I find that if I use \crefname to define the text in \cref, then the code should be like

\crefname{counter name of theorem}{theorem}{theorems}
\crefname{counter name of proposition}{proposition}{propositions}
\crefname{counter name of lemma}{lemma}{lemmas}

so with these three using a same counter, the last command takes place of the two before it, so whenever I refer to a theorem or proposition by

\cref{th:label}

the text before the number appears to be ``lemma’’.

Is there any way to fix this, without abandoning the usage of \cref?

Thanks in advance for any help.

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  • 2
    You need tcolorbox option label type, see the package manual and tex.stackexchange.com/a/179962. Sep 14, 2021 at 20:52
  • @muzimuzhiZ It works! Thank you so much.
    – Shana
    Sep 15, 2021 at 1:11
  • Perhaps you can post an answer yourself then accept it, so that the question would be well closed. Sep 15, 2021 at 4:00

1 Answer 1

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Thanks to @muzimuzhiZ 's comment, I find that adding a ``label type=name'' in the option fixes this.

Codes:

\newtcbtheorem[number within=section]{theorem}{Theorem}{label type=theorem}{th}
\newtcbtheorem[use counter=tcb@cnt@theorem, number within=section]{proposition{Proposition}{label type=proposition}{pr}
\newtcbtheorem[use counter=tcb@cnt@theorem, number within=section]{lemma} {Lemma}{label type=proposition=lemma}{le}
\crefname{theorem}{theorem}{theorems}
\crefname{proposition}{proposition}{propositions}
\crefname{lemma}{lemma}{lemmas}

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