I am trying to type by using amsart. I want numbering of the definitions, lemma theorem etc should be of the form x.y.z, where x is section, y subsection and z the actual number of the theorem. I ave used \setcounter{secnumdepth}{4} but it does not seem to be working. (Moreover I do not want any table of contents). Please help.


secnumdepth is something different; it determines which section headings should receive numbers, not the numbers that they receive.

When you define your definitions, lemmas, etc, you have the option to determine which counters they inherit; for example,


will define the definition environment to use the subsection counter. Here's a complete MWE:

% arara: pdflatex




  • While this is a correct answer to the question, I'd recommend not to number statements by subsection, which makes it impossible not to use subsections; moreover, the number will be very long: <chapter>.<section>.<subsection>.<statement> – egreg Apr 26 '14 at 9:53

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.