[lojban] tu'o usage

["Lionel Vidal" <nessus@free.fr>]

la pc cusku di'e:
> {tu'o}, the "null operand" (nowhere further explained) is used here as a
> vacuous PA.  The grammar requires a descriptor or a number here, but the
fact
> is that there is always exactly one thing satisfying this description, so
why
> get involved with all the problems (quantifiers especially) that using a
> regular form involves?

la xorxes cusku di'e
>{tu'o} is the "quantifier" you use when you don't want a
>quantifier.

What is then the semantic of {tu'o broda}? If it is used when there is
exactly one thing satisfying the description, why not be explicit
with {lo pa broda}?

mu'omi'e lioNEL




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