ABSTRACT
The second assumption is that propositions have semantic properties. Among these semantic properties are truth-conditional properties. For example, SUPPLICATE is true if and only if Mother Teresa supplicates. This observation might seem banal. After all, SUPPLICATE just is the proposition that Mother Teresa supplicates, and it might seem obvious that the proposition that Mother Teresa supplicates is true if and only if Mother Teresa supplicates. But not everything has truth-conditions. Mother Teresa, for example, doesn’t. And not everything that has truth-conditions has the same truth-conditions as SUPPLICATE does. The proposition that Ole-Kristian fights, for example, has truth-conditions; but it’s not the case that it’s true if and only if Mother Teresa supplicates. Rather, it’s true if and only if Ole-Kristian fights.
