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Re: [lojban] Re: tersmu 0.2



Well, I've already said several times that I don't understand what this thread is about, so I,ll take that part as true.  But denying you are giving up on ergonomicity while presenting several "improvements" in Lojban which clearly -- and, indeed, boastfully -- bring back features that the drive for a more ergonomic form got rid of seems perverse.  The apparent problem is that you do not know the rules for getting logical forms from linguistic ones.  This is not surprising since Logjam has always neglected this issue in favor of the intermediate one of getting to monoparsing, from which product the move to logical form was thought to be easier.  You seem tobe about rewriting things directly in Lojban (well, something descended from Lojban anyhow) rather than in the parses.  This may at some point be needed, but it seems a move best left til after other, more natural and traditional moves have been exhausted.  The fact that some of your suggestions appear to be clearly wrong even on your own terms adds to the difficulty in figuring out what this bread is about.
The difference between the 1s and the 2s is just using and not using the minimum scope rule (which has, admittedly, a number of exception clauses but none that apply here).  The fact that the proposed rewritings are more complex and farther from the actual logical (in the cases of b and the additionally incorrect c) means that the results are not more obvious at all.
The tricky cases involving fronting and subject raising and the like do suggest the the efforts to ergonomize logic into Lojban are not complete or completely successful.  Your proposals do suggest some ways to deal with these hard cases, though these can probably be implemented without all the rest of your apparatus.
I got to wondering about "What I think John knows is possible", ignoring the extra problems of cognitive predicates and using / for the descriptor, since typefaces keep confusing LC ell with one and uc i. P /x(Bi/y(^Kjx^y)), which Is not going to convert easily, as you say.  But that is no reason to disparage cases that do convert easily.  Indeed, it makes me inclined to doubt the legitimacy of the form itself (quantifying in and all that).




Sent from my iPad

On Oct 11, 2014, at 6:20, Jorge Llambías <jjllambias@gmail.com> wrote:


On Fri, Oct 10, 2014 at 9:43 PM, 'John E Clifford' via lojban <lojban@googlegroups.com> wrote:

The syntax of Lojban doesn't allow any transformation, since it is entirely static (whether PEG or YACC).  So I suppose that  you mean that  {re da lo mamta be da} is not a term in Lojban.  

I mean that the logical form of  "lo mamta be re da cu cliva" is not as obvious from the syntactic form as the logical form of, on the one hand:

(1a) lo poi'i re da zo'u ke'a mamta da cu cliva
(1b) xxx poi re da zo'u ke'a mamta da  cu cliva
(1c) zo'e noi re da zo'u ke'a mamta da cu cliva

and on the other hand:

(2a) re da zo'u lo poi'i ke'a mamta da cu cliva
(2b) re da zo'u xxx poi ke'a mamta da  cu cliva
(2c) re da zo'u zo'e noi ke'a mamta da cu cliva

We need to state explicitly in the rules for interpreting the language that "lo mamta be re da cu cliva" corresponds to the 1's and not to the 2's. To anyone familiar with FOPL, the rules for interpreting the 1's  and 2's are more obvious and straightforward just from the syntactic form in a way that they are not so obvious in the condensed form.

 
The whole point of much of the deviation of Lojban from logical notation is to make an ergonomic (yuck, ptui!) language while keeping a connection to the logic.  Why deliberately go after the antiergonomic "standard form" when you have a good representation already,  

The sumti-tail form requires fronting the argument place for the variable bound by "lo". It is not always possible or convenient to do that. For example:

  lo poi'i mi jinvi lo du'u la djan cu djuno lo du'u ke'a cumki
  xxx poi mi jinvi lo du'u la djan cu djuno lo du'u ke'a cumki
  zo'e noi mi jinvi lo du'u la djan cu djuno lo du'u ke'a cumki
  "That which I think John knows is possible." 

 
There are problems with Lojban's representations of standard form, but the solution is to find better ergonomic treatments, not to give up and go back to the unusable originals.

If you think anyone is suggesting giving up on the ergonomic forms, you are misreading what this thread is all about. 

mu'o mi'e xorxes

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