The idea that natural language grammar and planned action are relatedsystems has been implicit in psychological theory for more than acentury. However, formal theories in the two domains have tendedto look very different. This article argues that both faculties sharethe formal character of applicative systems based on operationscorresponding to the same two combinatory operations, namely functional composition and type-raising. Viewing them in thisway suggests simpler and more cognitively plausible accounts of bothsystems, and suggests that the language faculty evolved in the (...) speciesand develops in children by a rather direct adaptation of a moreprimitive apparatus for planning purposive action in the world bycomposing affordances of objects or tools. Theknowledge representation that underlies such planning is alsoreflected in the natural language semantics of tense, mood, andaspect, which the paper begins by arguing provides the key tounderstanding both systems. (shrink)

For the first time a uniform compositional derivation is given for quantified sentences containing exceptive constructions. The semantics of exceptives is primarily one of subtraction from the domain of a quantifier. The crucial semantic difference between the highly grammaticized but-phrases and free exceptives is that the former have the Uniqueness Condition as part of their lexical meaning whereas the latter are mere set subtractors. Several empirical differences between the two types of exceptives are shown to follow from this basic lexical (...) difference. (shrink)