This is a Wikipediauser page. This is not an encyclopedia article or the talk page for an encyclopedia article. If you find this page on any site other than Wikipedia, you are viewing a mirror site. Be aware that the page may be outdated and that the user in whose space this page is located may have no personal affiliation with any site other than Wikipedia. The original page is located at https://en.wikipedia.org/wiki/User:Hans_Adler/archive.
I joined Wikipedia in November 2007, when I found that some Wikipedia articles around model theory contained incorrect information, used inconsistent terminology, or were unnecessarily duplicated with a model theory version and a universal algebra version competing for the few knowledgeable editors. Since my arrival the situation has vastly improved, but obviously there is still a lot to do.
I would like to get more structure into the existing articles on basic definitions in model theory and universal algebra, so they become a solid basis for further extensions. My work area for this is here. The worst part is currently everything that is related to Boolean algebra.
Other typical areas of activity for me are obscure historical topics that somehow catch my fancy, most notably pigeon photography and the history of card games.