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Chapter 14. Conditional exponence

  • Gregory T. Stump
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All Things Morphology
This chapter is in the book All Things Morphology

Abstract

In inferential-realizational theories of morphology, the content realized by the application of a rule of exponence is customarily assumed to be invariant across the range of contexts in which that rule applies. Yet, there are morphomic exponents whose content is sensitive to context; Breton verb inflection presents striking examples of exponents of this sort. I argue that the patterns of context dependency presented by such exponents are an effect of the phenomenon of rule combination, by which simple rules of morphology may combine to form more complex rules. Some rule combinations involve ordinary rule composition; the properties of a combination of this sort are deducible from those of its component rules. Other rule combinations are supplementational; a combination of this sort possesses one or more properties that are not deducible from those of its component rules. As I show, the Breton examples of conditional exponence involve supplementational rule combination. I elucidate this claim formally and discuss its wider implications for morphological theory.

Abstract

In inferential-realizational theories of morphology, the content realized by the application of a rule of exponence is customarily assumed to be invariant across the range of contexts in which that rule applies. Yet, there are morphomic exponents whose content is sensitive to context; Breton verb inflection presents striking examples of exponents of this sort. I argue that the patterns of context dependency presented by such exponents are an effect of the phenomenon of rule combination, by which simple rules of morphology may combine to form more complex rules. Some rule combinations involve ordinary rule composition; the properties of a combination of this sort are deducible from those of its component rules. Other rule combinations are supplementational; a combination of this sort possesses one or more properties that are not deducible from those of its component rules. As I show, the Breton examples of conditional exponence involve supplementational rule combination. I elucidate this claim formally and discuss its wider implications for morphological theory.

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