Universal #951

Legacy number: 951

 Number  948
 Original  In languages with phonemic stress, the number of phonemic contrasts in stressed syllables will be greater than or equal to the number of phonemic contrasts in unstressed syllables.
 Standardized  When there is phonemic stress, the number of phonemic contrasts in stressed syllables will be greater than or equal to the number of phonemic contrasts in unstressed syllables.
 Keywords  stress, phoneme, syllable
 Domain  phonology
 Type  unconditional
 Status  achronic
 Quality  statistical
 Basis  unspecified
 Source  Trubetzkoy, as referred to by Ferguson 1963: 54, cited in Décsy 1987: 52;
also Saporta 1963: 68, cited in Uspensky 1965: 194, Dressler 1979: 265

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Discussion
Counterexamples
Certain Tajik dialects and certain varieties of Syrian Arabic, in which stress has a leveling effect on vowels. In these languages, the stressed vowels are not greatly lengthened and are less clear that the unstressed vowels. These languages usually have a greater number of vowel contrasts in unstressed position. (Uspensky 1965: 194 referring to Ferguson 1963: 54)
Notes
Can probably be redone implicationally: IF there is a phonemic contrast in unstressed syllable, THEN stressed syllables will have the same phonemic contrast and possibly more.But are unstressed and stressed syllables really supposed to share the SAME contrasts?Is supposed to illustrate "the general principle of economy whereby the presence of the complex pattern implies the presence of the more simple one".
Comment
Frans Plank · 3 Aug 2006
Can probably be redone implicationally:
IF there is a phonemic contrast in unstressed syllable, THEN stressed syllables will have the same phonemic contrast and possibly more.

But are unstressed and stressed syllables really supposed to share the SAME contrasts?

Is supposed to illustrate "the general principle of economy whereby the presence of the complex pattern implies the presence of the more simple one".