A cognitive pragmatic approach is taken to some long-standing problem
cases of
negation, the so-called presupposition denial cases. It is argued that
a full account
of the processes and levels of representation involved in their interpretation
typically
requires the sequential pragmatic derivation of two different propositions
expressed.
The first is one in which the presupposition is preserved and, following
the rejection
of this, the second involves the echoic (metalinguistic) use of material
falling in the
scope of the negation. The semantic base for these processes is the standard
anti-presuppositionalist wide-scope negation. A different view, developed
by
Burton-Roberts (1989a, b), takes presupposition to be a semantic relation
encoded in natural
language and so argues for a negation operator that does not cancel presuppositions.
This view is shown to be flawed, in that it makes the false prediction
that
presupposition denial cases are semantic contradictions and it is based
on too narrow
a view of the role of pragmatic inferencing.