I read article Two Generalizations of Komlós' Theorem with Lower Closure-Type Applications by Erik J. Balder, on page 33 : I found the following sentence "(see Appendix B)" that I did not find the Appendix B part in the article and I did not understand what the author means by this sentence
1 Answer
$\begingroup$(Combining some thoughts from comments into an answer.)
About appendices in general ...
An "appendix" is a section added (that is, appended) at the end of an article, book, or other document. Its typical purpose is to elaborate on details of a topic that would be too much of a distraction if included in the main body of the text.
In mathematical papers, appendices tend to be labeled alphabetically to distinguish them from numerically-labeled sections in the main body of the work. Often, but not always, they are separated into a group explicitly marked "Appendices".
In this particular case ...
The article in question (PDF link via science.uu.nl)) has multiple references to "Appendix A" and "Appendix B", including "Appendix A to this paper" (pg 26). So, the author is definitely referring the reader to content of the current document; however, there is no Appendix A nor Appendix B identified in that paper.
Confusion is, therefore, understandable.
As it happens, there's another version of the article (PDF link via core.ac.uk), and this one includes sections —that is, appendices— "A" and "B". The content of these sections is actually found in sections 7 and 8 of the first version of the article.
Evidently, someone goofed during a revision, either accidentally re-labeling the appendices, or else intentionally doing so but forgetting to update the "Appendix A" and "Appendix B" references in the text.
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