Hi there,

my work about category theory is now finished. I invested a lot of time and the result is about 29 sites with a lot of pictures to demonstrate all the properties of a special category PRE about the preorders. For all these people, who are interested in that stuff, i wish a interesting time in reading these paper. Here you get the direct download, but only in german, I'm sorry: [pdf-450,1kB]


have a nice day,
Andi