Angled brackets

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Angled brackets refer to a notational convention that used to collapse rules.


The two rules (i) and (ii) can be collapsed as (iii).

(i) A -> B /_____Y X Z

(ii) A -> B /_____Y Z

(iii) A -> B /_____Y <X> Z

The difference between the rules (i) and (ii) is the presence or absence of the variable X.


Utrecht Lexicon of Linguistics


Chomsky, Noam A. & Halle, Morris. 1968. The sound pattern of English. New York: Harper & Row.