Subsubchapter

Imagine a book about occupations with a table of contents divided into chapters organized by interest fields, subchapters organized by level of income offered, subsubchapters organized by physical strength required, and so on through ten tiers of classification. This work of classification would be impressive, but would still be helpful only to the user who wants to search using the characteristics in the (arbitrarily) hierarchic order given.

A number of commands have been devised to generically code a publication into its major parts, such as sections, chapters, subchapters, subsubchapters, appendices, subappendices, etc.

This „monograph" has a lot of features of a good textbook (index, list of symbols, problems and exercises gathered in subsubchapters named „Further Topics", etc. ), but it presupposes some basic knowledge in (general) mathematics.

In addition, the following persons offered feedback on individual chapters, subchapters, or perhaps even subsubchapters, of the manuscript: Ryan Acton, Scott Aikin, ...

We want to define the concept of a book with chapters, subchapters, subsubchapters etc. Evidently, a book can have an arbitrary number of chapters, and the depth of sectioning and subsectioning a book is not limited. But we can say that a book always consists of title, text, and a set of chapters. In turn, each chapter again consists of the same data type, except that we have to enumerate the chapters. We thereof deduce a natural ordering of appearance of the particular chapters.

Let's consider what word “round” means: Each of most rounds (i.e. all contract rounds; see description of contract rounds far below in a subsubchapter “17.4.1 Contract rounds” of a subchapter “17.4 Play of the cards” of the present chapter) consists of five stages – game offer, bidding, final game offer, whist and play until all dealt for this round cards end at all players. Each misere round (see description of misere rounds far below in a subsubchapter “17.4.2 Misere rounds” of the ...