I am studying Feynman's "symmetry in physical laws", where he talks about conservation laws for corresponding symmetries. (I know this is Noether's theorem, I am studying this from David Tong's lecture notes)
Now, if in a thought experiment I assume that our universe is made up of antielectrons, antiprotons, antineutrons and if I now perform an experiment, the experiment will run the same as if I perform it in a universe made up of electrons, protons, neutrons etc etc. So there is a symmetry, so is there any kind of conservation law corresponding to this symmetry?
