Eff this, philly mike is an idi0t, ask zdunklee.

[zdunklee]

For the first part, no this is not true, you do not round 0.999... ever and I don't get what you do not understand, please look up the definitons of Real and Rational numbers like I suggested. Unlike most science math is not a debatable subject, as proofs are concrete and opinion means absolutely nothing.

As for the second, this is another example of you not being able to think in terms of infinity. I want you to SHOW me why 9.999... - 0.999... = 8.999, it doesn't ever. I can clearly see that you don't use math very often... just by the terrible mistakes you are making that are simple to other here as well.

where are you getting i said 9.999... - 0.999... = 8.999...

last time i checked the statement x=0.999... then 9x means 9 times 0.999... and that would equal 8.999 the same way 10x equals 9.999...

I do enough math to understand how to multiply
you told me to start using that calculator thingy. Why not try using it yourself?

You said that when you changed the numbers in the proof, that is what that is a proof, if you change the numbers you are changing the proof.

I know that if you multipy 9* 0.999 it equals 8.9999... which in turn = 9. But that is NOT what I did in the proof. I didn't ever multiply 9 * 0.9999 ever in the proof.

The 9x = 9 comes from the previous step in which 10x-x - 9.999... - 0.999..., that is what a proof is, it is logical steps that follow from one to the next.