Sentential proforms and argument conditionals
The paper is about the relationship between German argument wenn-clauses and their proforms as in Lea bedauert es, wenn Mia Klavier spielt ‘Lea regrets it if Mia plays the piano’. Confirming and complementing Fabricius-Hansen’s (1980) view that these clauses are proper adverbials and simultaneously provide a propositional argument for a matrix predicate, the paper regards argument wenn-clauses as left- or right TP-adjuncts that m-command a sentential proform. It shows that the proform can also be pro if it represents an obligatory propositional argument. This pro is locally m-bound by the argument wenn-clause and itself locally m-binds an argument dass-clause. The latter is a right vP-adjunct and can be deleted if it is coreferential with the argument wenn-clause, if both are alike with respect to their information structural status, if they are identical with respect to their C’, and if they are adjacent.