Re: [math-fun] when and why was it agreed that 0.999...=1?

I missed the first post, but: I thought surreals were constructed with a surreal on the left and a surreal on the right. So what does it mean to have a sequence on the left and/or right? I might be able to guess, but would rather know how (and where) this is defined. Thanks, Dan On 2012-11-15, at 9:39 PM, Huddleston, Scott wrote:

Minor correction: I said {.3, .33, .333, .3333, ...} | {} is 1/2 in the surreals. Actually, it is 1. Still reinforcing that

{.3, .33, .333, .3333, ...} | {.3+.1, .33+.01, .333+.001, ...} = 1/3 Is the better way to map infinite decimals into surreals.