Universal 959: vowel harmony ⇒ ¬ vowel reduction;
vowel reduction ⇒ ¬ vowel harmony

Universal 959: vowel harmony ⇒ ¬ vowel reduction;
vowel reduction ⇒ ¬ vowel harmony

Original

Vowel harmony and vowel reduction typically do not co-occur.

Standardized

IF there is vowel harmony, THEN there is typically no vowel reduction, and vice versa.

Keywords

vowel harmony, vowel reduction

Domain

phonology

Type

mutual implication

Status

achronic

Quality

statistical

Basis

unspecified

Source

Dressler 1979: 265, interpreting Donegan & Stampe 1983

Counterexamples

Dressler 1979: 265:Xinalug (Lezgian, Caucasian), Eastern Cheremis, Hungarian (both Ugric, Uralic)