Theorem25.1First Theorem
No statement.
Section25Advanced Numbering
¶This section demonstrates the numbering patterns used throughout PreTeXt. There are five subsections. Two intermediate subsections each have two subsubsections. This creates a total of seven divisions that are leaves of the document tree. In each leaf we have placed two numbered theorems, for a total of fourteen. There is no real content, this is just a demonstration.
Use values of 0 through 3 for the numbering.theorems.level parameter to see how these numbers change accordingly. It is easiest to compare if you use chunk.level < 2 so the theorems all land on the same page if you are previewing in HTML.
Subsection25.1One
A document leaf.
Theorem25.2Second Theorem
No statement.
Subsection25.2Two
Further subdivided.
Subsubsection25.2.1Uno
A document leaf.
Theorem25.3First Theorem
No statement.
Theorem25.4Second Theorem
No statement.
Subsubsection25.2.2Dos
A document leaf.
Theorem25.5First Theorem
No statement.
Theorem25.6Second Theorem
No statement.
Subsection25.3Three
A document leaf.
Theorem25.7First Theorem
No statement.
Theorem25.8Second Theorem
No statement.
Subsection25.4Four
Further subdivided. We include two theorems as numbered items in the introduction to test their numbers, which should always be logical.
Theorem25.9Good Numbered Theorem One
No statement.
Theorem25.10Good Numbered Theorem Two
No statement.
Subsubsection25.4.1Uno
A document leaf.
Theorem25.11First Theorem
No statement.
Theorem25.12Second Theorem
No statement.
Subsubsection25.4.2Dos
A document leaf.
Theorem25.13First Theorem
No statement.
Theorem25.14Second Theorem
No statement.
Conclusion now. We include two theorems as numbered items in the conclusion to test their numbers, which are sometimes totally illogical and are inconsistent across output formats. To see the effect, use --stringparam numbering.theorems.level 3 in the xsltproc invocation. See this GitHub issue for details.
Theorem25.15Bad Numbered Theorem One
No statement.
Theorem25.16Bad Numbered Theorem Two
No statement.
Subsection25.5Five
A document leaf.
Theorem25.17First Theorem
No statement.
Theorem25.18Second Theorem
No statement.
Subsection25.6Theorems in This Section
¶We have a lot of theorems in this section, so we illustrate including an automatic list of these here. We use the elements attribute to limit the list to theorem elements, and we use the scope attribute to limit the list to this section. You can use an introductory p like this one, or not. The list gets no title or visual separation, so use the usual subdivision elements to make that happen. The elements attribute can be a space-delimited list of many different elements. This list should not include the Fundamental Theorem of Calculus, Theorem 2.1. See a slightly different example in Appendix C.
Theorem 25.1 First Theorem
Theorem 25.2 Second Theorem
Theorem 25.3 First Theorem
Theorem 25.4 Second Theorem
Theorem 25.5 First Theorem
Theorem 25.6 Second Theorem
Theorem 25.7 First Theorem
Theorem 25.8 Second Theorem
Theorem 25.9 Good Numbered Theorem One
Theorem 25.10 Good Numbered Theorem Two
Theorem 25.11 First Theorem
Theorem 25.12 Second Theorem
Theorem 25.13 First Theorem
Theorem 25.14 Second Theorem
Theorem 25.15 Bad Numbered Theorem One
Theorem 25.16 Bad Numbered Theorem Two
Theorem 25.17 First Theorem
Theorem 25.18 Second Theorem
Subsection25.7A Title with ] a Right Bracket
LaTeX has trouble with brackets that end up inside optional arguments, so this is only a check on the defense against that.