12/20/2007, 09:02 PM
Then I better even do not start with them. I read a little aboout ordinals, cardinals etc. after Andy's post and I get the same feeling as dealing with limits -I just do not get it.Can it not be simpler? Infinitesimals though feel rather easy and intuitive, as well as graded infinities and different scales and rotations of infinitesimals.

