Numbering by Subsection

#1

Is it possible to change the environment numbering (e.g. for definitions and theorems) to follow the subsection instead of section?

Also, can something similar be done with equation numbering?

#2

Right click while in one of the environments -> Preferences -> Prefix by section number

If done in Theorem, is applied to definitions and equations as well (I think one can generalize :slight_smile: )

#3

Hi @pireddag, yes that is true for section number, although I’m not sure how to do this with sub-section number, i.e. have Theorem 2.1.1. instead of Theorem 2.1.

Would you happen to know of a command that could give this behaviour?

#4

I had not seen the sub in your question, sorry.

I investigated a bit with the help of the macro editor. I think you need to redefine both the subsection-clean macro (which is called by the subsection macro) and the display-std-env macro.

The subsection-clean macro should include the reset-std-env macro—I do not know whether it should still include subusbsection-clean like it does in the macros I have now, one needs to investigate more; see the section-clean macro, as it is when you have selected “Prefix by section number”, for a model;
the display-std-env macro that I have now (again with “Prefix by section number” selected, I did not check how it is when “Prefix by section number” is not selected) is

<assign|display-std-env|<macro|nr|<section-prefix><arg|nr>>>

and I think it should have subsection-prefix instead of section-prefix.

Let me know if you think that you can pick things up from here (of course one can always discuss).

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#5

This can also be achieved by loading the package number-long-article.

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#6

I have figured out that I need to (quoting from Theorem numbering)

but I did not find out how to use the package to do numbering by sub-section