ABSTRACT
A type of rule in transformational grammar for the specification of general regularities. They take the form of rewrite rules and state ‘If feature A exists, then insert feature B.’ Such generalizations affect morphological, syntactic, and semantic properties. They help simplify lexical entries, because they specify predictable features. For example, phonological redundancy specifies the predictability of phoneticphonological features in a general way: [+nasal]→[+voiced] since voicing correlates with nasality.
