The paper investigates the connection between non-constituent coordination, as implemented in categorial grammar by means of a polymorphic type-assignment to lexical conjunctions, and hypothetical reasoning in Categorial Logics. A way of extending the logic is suggested, so that coordination can be applied to types depending on undischarged assumptions. By a certain ``resource manipulation'' of assumptions (of hypothetical reasoning), a late-discharge is facilitated, leading to what is referred to as the {em radical non-constituent coordination, wherby only basic types (and not functional types of any kind) are coordinated.

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CWI
Information Systems [INS]

Francez, N. (1997). Hypothetical-reasoning and radical non-constituent coordination in categorical logic. Information Systems [INS]. CWI.