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On 25-Aug-05, at 11:39 AM, Roberto Ierusalimschy wrote:

     rmin = rmin min value
     rmax = rmax max value

If a<=b returned a instead of true, we could write "a<=b or b" for min
and "a>=b or b" for max :)

True enough. As long as no-one thought of defining __lt for booleans such that false < true :)

This makes reductions a little easier to write,

Lua 5.1 offers the value math.huge, which you can use as the neutral
element for min.

Yes, but that only works for numbers, not (for example) for strings.