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Contradictory negation

From:John Cowan <jcowan@...>
Date:Friday, September 27, 2002, 15:53
In Loglan, there is a particle "no" which when placed at the beginning of
a sentence, expresses the falsity of the (rest of the) sentence.
In this position, it can be glossed as "It is false that":

        No ra kangu ga blabi
        [false] all dog [separator] white
        It is false that all dogs are white.

Lojban has a similar particle, with slightly different morphology ("na")
and very different syntax.  It is canonically placed before the verb,
but still has the effect of negating the entire sentence.  Thus:

        ro gerku na blabi
        all dog [false] white

does not mean "All dogs are not white" but rather "It is false that all dogs
are white", i.e. "Not all dogs are white", i.e. "Some dogs are not white".

Are there any natlangs which have negation particles that work like Lojban's?

John Cowan   <jcowan@...>
    "Any legal document draws most of its meaning from context. A telegram
    that says 'SELL HUNDRED THOUSAND SHARES IBM SHORT' (only 190 bits in
    5-bit Baudot code plus appropriate headers) is as good a legal document
    as any, even sans digital signature." --me


Clint Jackson Baker <litrex1@...>Logic and language WAS Re: Contradictory negation
H. S. Teoh <hsteoh@...>
Gustavo Eulalio <guga@...>