Measuring the functional load of phonological contrasts

S.xy is the corpus S with each occurrence of x or y replaced by that of a new phoneme. It represents Lxy in the same way that S represents L. FLkS(x,y) can no longer be interpreted as the fraction of information lost when the x-y opposition is lost, as such an interpretation would only be true if L was generated by a k-order Markov process. ................
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