Well you need to improve your English. My original phrasing was perfectly good, but you didn't understand it, presumably because you're not a native speaker.
@Stupidquestioninc It's trivial for me, but you should go and prove it. I stated it without proof because I was just stating the mathematical contents of the stuff you quoted, in a mathematically proper way.
The stuff you quoted didn't include a proof either.
@user21820 Umm. I interpreted same as you wrote. May be the way I speak is kinda confusing. I was confused because it was not trivial to me. I appreciate your help very much. Have a nice day =).
i just created a separate chat room and have given a new user full access to it. does anyone know what i need to do to invite this specific user to the chat room that i created?
thx, i got the help i need - the mathSE chat documentation seems to be fragmented, incomplete, outdated, and byzantine - sorry for the interruption - i am leaving room now
