Adverbs and Conjunctions
[[ioj.htm|An Implementation of J]]
An adverb is monadic, applying to a noun or verb argument on its left; a conjunction is dyadic, applying to noun or verb arguments on its left and right. The result is usually a verb, but can also be a noun, adverb, or conjunction.
The conjunction & is used here to illustrate the relationship between relevant system components. (The implementation of adverbs is similar.) & derives a verb depending on whether the arguments are nouns (m and n) or verbs (u and v):
m&n gerund join
m&v m&v y is m v y
u&n u&n y is y v n
u&v u&v y is u v y; x u&v y is (v x) u (v y)