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On Thursday 23 February 2006 19:29, PA wrote:
> Yes.. but in practice... how could you tell the difference between a
> trailing nil and a nonexistent nil?

Because in an argument list, you can spot 'em with arg.n, or whatever 
mechanism 5.1 has to replace this (I forget exactly). This is one of the 
places where tables and tuples are different.

+- David Given --McQ-+ "There is one thing a man must do // Before his
|    | life is done; // Write two lines in APL // And make
| ( | the buggers run."
+- --+ --- The Devil's DP Dictionary

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