Asymmetric Merge and Parataxis

I argue that syntactic structure encodes three types of asymmetries. The first corresponds to the asymmetry between mother and daughters nodes that is called dominance, that is, syntactic hierarchy. The second is the selectional asymmetry between sister nodes, Which is translated into the precedence relation in the phonological component. The third, called behindance, is an alternative to dominance, and corresponds to parataxis. Parenthesis, Coordination, and apposition are analyzed on the basis of behindance. In our derivational model of grammar it is defined its a special type of inclusion that blocks c-command. It follows that parenthetic material can neither move toward the matrix, nor lie bound by a constituent from the matrix.