PROMAL PROVE SYSTEM What is already done: - We have writen a small program in which you can prove something. - We have proved that 2+2=4 in Peano arithmetic. - We introduced a possiblility of defining something. - We have proved some easy facts and defined some basic objects in ZFC. - We decided that there should be possibity of proving theorems about general formulas (higher-order). If you are interested in this project, please contact me: parys@mimuw.edu.pl