Lutz's Sayings -------------- Your definition is indeed fantastically clumsy. I still don't get it; apparently you have no clue what we are dealing with. We do science here, and that means we have to be able to change our opinion about right or wrong. The explanation "it is easier for the reader" is the most stupid I could think of. I also hate copyright. But I am scientist, and I'd like to know my sources. You can make it stupidly, but then you have to be really stupid. A parenthesis is missing, I told you already in Vienna. So far, nothing I have said has been proved wrong. You have no clue what I can imagine and what not. I won't break your balls any more with exchange. What's uncomfortable about running up the hill? If you solved this, you would be famous. I cannot imagine derivations having sex. If I wanted to blow a plane I could. Talk, have sex: problem solved. There is no "might be". I know everything.