Kymorph/Remaining transducer issues/п deletion and voicing conflict
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Revision as of 22:40, 23 July 2011 by Firespeaker (talk | contribs) (Created page with '== The problem == * п should delete between a low vowel and a morpheme boundary followed by {I}п ** e.g., тап>{I}п : таап, теп>{I}п : тээп (everything else need…')
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The problem
- п should delete between a low vowel and a morpheme boundary followed by {I}п
- e.g., тап>{I}п : таап, теп>{I}п : тээп (everything else needed for these rules works)
- п should voice (to б) in all other intervocalic positions
The basic rules
- "Intervocalic voicing of п"
- п:б <=> :SurVow (:0) _ %>: (:0) :SurVow ;
- "Deletion of п at end of verb stem in <cv_perf>"
- п:0 <=> :LowVow _ %>: %{I%}: п ;
The conflict
- There is a <=-rule conflict between "Intervocalic voicing of п everywhere except in <cv_perf>" and "Deletion of п at end of verb stem in <cv_perf>".
- E.g. in context {I}:и >: ё:ё _ >: {I}:и п:п
- WARNING! The conflict is unresolvable.
What needs to be done
Somehow, the voicing rule needs to exclude the entire environment of the deletion rule.
How to do it
Using <= and => instead of <=> does not seem to be a possible solution. Instead, it might be possible with what's suggested in the twolc book on pp. 49-54.
