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Michael Roth wrote:

What about a more general solution:

select(i,..)    -->    slice(i, i, ...)
skip(i, ...)    -->    slice(i, ...)
first(...)    -->    slice(1, 1, ...)
first(i, ...)    -->    slice(1, i, ...)
tail(...)    -->    slice(2, ...)
last(...)    -->    slice(-1, ...)
last(i, ...)    -->    slice(-i, ...)
Excuse my old complaint about counting from 1 and closed ranges, but how about a slice starting from i of length 0? 

-John

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