Docs / Phonology / Segmental / FeatureClass
import Linglib.Phonology.Segmental.FeatureClass · namespace Phonology
Hayes's grouping of the distinctive features into manner, laryngeal and place features, with the place features split among the three major articulators [labial], [coronal] and [dorsal]. The classes are finite sets of features, the place class is their union, and a complex segment is one with more than one major articulator. Two segments are homorganic when they agree on the major articulator features.
FeatureClass, Feature.featureClass?: the five classes and the class of each feature.FeatureClass.features, FeatureClass.place: the features of a class, and the place class.Feature.majorArticulators, Segment.articulators, Segment.IsComplex: the major articulator
features, the major articulators of a segment, and complex segments.Segment.Homorganic: agreement on the major articulator features.The classes are sets rather than the nodes of a tree. Hayes treats Place as a group concept and
draws no tree, Padgett defines feature classes as sets of features, and Halle, Vaux and Wolfe
record that there is no consensus on which revisions of the geometry to adopt. Trees are instances
of Phonology/FeatureGeometry.lean in the studies of the works that argue for them.
[tense], which Hayes's consonant charts print under the place heading but his list of the place features leaves out, and the tongue-root features [ATR] and [RTR] belong to no class.
The feature classes: the manner and laryngeal features, headed as such in Hayes's consonant charts (Hayes 2009 Table 4.7), and the place features of each major articulator, the columns of his list of the place features (Hayes 2009 p. 89).
Derives DecidableEq, Repr, Fintype.
Used by Feature.featureClass?, FeatureClass.features, FeatureClass.mem_features
The class of a feature, with [syllabic] a manner feature by the sonority hierarchy (Hayes 2009 §4.4.1), and none for [tense], [ATR] and [RTR].
Built from
Used by FeatureClass.features, FeatureClass.mem_features, FeatureClass.mem_place
The features of a class.
Built from ,
The place class, the union of the three articulator classes: Hayes's place features (Hayes 2009 p. 89), and Padgett's Place, which "simply stands for the set {[labial], [coronal], [dorsal], …}" (Padgett 2002 p. 82).
Built from
Used by FeatureClass.mem_place
Built from , ,
Built from ,
The major articulator features [labial], [coronal] and [dorsal] (Hayes 2009 §4.6.1).
Used by Feature.mem_majorArticulators, Segment.articulators, Segment.Homorganic
Used in Phonology/NasalSubstitution
Built from
The major articulators of a segment, the major articulator features it is specified + for:
Halle, Vaux and Wolfe's designated articulators (Halle et al. 2000 §1.2.2).
Built from
Used by Segment.IsComplex, instDecidablePredSegmentIsComplex
Two segments are homorganic when they agree on the major articulator features.
Built from
Used by instDecidableRelSegmentHomorganic
Used in Phonology/NasalSubstitution, Sneddon1996
The definition is too large to print here; read it in the source.
Built from
A complex segment has more than one major articulator, as the labial-velars are [+labial, +dorsal] and the palatals [+coronal, +dorsal] (Hayes 2009 p. 84, Table 4.8). Whether [kʷ] is complex depends on its representation: labialization adds [+labial, +round] for Hayes (Hayes 2009 p. 86), and leaves [labial] unspecified for Halle, Vaux and Wolfe (Halle et al. 2000 p. 435).
Built from
Used by instDecidablePredSegmentIsComplex
Used in Fragments/Akan/Phonology, HalleVauxWolfe2000, Sagey1986
Built from ,