Keelefilosoofia raamat
of affairs. And for semantical purposes we may as well treat those semantic
values as truth-values. For example, a command is "true" if it does in fact
go on to be obeyed, "false" if it does not. Of course this is a nonstandard
use of "true" and "false"; we are widening their application to all semantic
bipolarity. (Perhaps we should make up a pair of more general semantical
terms, such as "positive" and "negative.")
A first rejoinder
Not all nondeclaratives are thus bipolar. Consider "wh-" questions, such as
"Who robbed the diaper service?," "What time is it?," and "Why did you blow
up my boat?" None of these has a "yes" or "no" answer; indeed, each admits
a very large range of possible correct answers.
Truth-Condition Theories: Davidson's program 119
A second rejoinder
The difficulty about lack of truth-value is not confined to nondeclarative
sentences