You have no idea what you're talking about! For those who now what it means, o.999... = 1 is a trivial fsct and easy to prove! 0.999... is NOT a real number. It is a symbol that represents an infinite series. An infinite series, by definition, is a sequence. The statement 0.999... = 1 says that the sequence represented by the symbol on the left CONVERGES TO the number represented by the symbol (numeral) "1". Take a course in calculus and learn about sequences and convergence.