[lojban] Re: na ja ro da ...

["Brett Williams" <mungojelly@gmail.com>]

On 4/21/08, MorphemeAddict@wmconnect.com <MorphemeAddict@wmconnect.com> wrote:
> lu na ja ro da li'u se smuni ma 


actually this is the wrong question :) 
 
what you should ask is what ".i na ja" means :) 
 
You may have seen the more common sentence connection: ".i je" or ".ije", which means that both of the sentences are true.  In place of the "je" you can put another logical connection, such as "ju", whether or not, or in this case "ja", one or the other or both.  You can also put either a "na" before the connector, to negate the first sentence, or a "nai" afterwards, to negate the second, which allows you to construct truth tables other than the basic four. 
 
".i na ja" means that in every case where the first bridi is true, the second bridi is true as well.  There may however be cases where the second bridi is true, even if the first is not.  So ".i na ja" is appropriate for situations where one thing is caused by or otherwise necessarily related to another, but there are other causes or situations which could possibly explain the second.  For instance:  It rains, [.i na ja] things get wet.  Rain always makes things wet, but it's not the only thing that does so.  OTOH:  This is above that, [.i jo] that is below this.  In this case, the relation always holds, and so "o", meaning "if and only if", is more appropriate. 
 
do pu zi se ctuca .ai .a'o .ui ro'e .ua pei 
 
mu'o mi'e .bret.