Victor Porton's Math Weblog

I significantly updated online article Category of Endomorphisms and Pseudomorphisms. (Updates concern mainly projection of a morphism and being generalized for precategories rather than only categories.) It is a base for my theory of formulas.

I suggest to add it to the base math University program (see also here).

This is nearly the final draft, the state in which this article will be published in Journal of post-Axiomatic Mathematics and Logic (to be used as a base for other articles) and will go to preprint and/or paper publication (when will be converted from an XML format to LaTeX).