@matrix I don't get it, troll man is technically correct.
Which is the best part of correct.

A number X that approaches 1, such that no other number is between X and 1...
That means X = 1, for all intents and purposes.
0.9999... infinitely repeating 999... = 1.

If X can't actually be 1, but can approach 1 from a particular direction, there's a notation for that, but I forgot how it looks like exactly.
With 0, you'd write something like +0, or -0, meaning approaching from the right, or left, respectfully.

lim xâ1(x/1) = 1
Is what I'm trying to say.