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Limits on global rules in Optimality Theory with Candidate Chains*
Published online by Cambridge University Press: 15 April 2011
Abstract
In Optimality Theory with Candidate Chains (OT-CC; McCarthy 2007), candidates are multi-step derivations, and precedence constraints, which regulate the order of derivational steps, can inspect entire candidate derivations. This means that OT-CC opens the door to certain kinds of ‘global rules’ – that is, effects in which the application or non-application of a process is decided with crucial reference to derivational history. This paper investigates what limits may exist on OT-CC's global rule powers, focusing on two forms of opacity which are possible under a theory where all rules apply simultaneously, but not under sequential rule application: mutual counterfeeding and mutual counterbleeding. It is shown that the original version of OT-CC allows none, but that each of them could be made possible with relatively simple revisions to the original theory. Possible examples of these forms of opacity are discussed.
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