Creativity has come to be associated with brevity and a belief in advertising, that all persuasion should reside in a single proposition, usually expressed in a sentence.
In the first place, it is not clear that we can encapsulate the information contained in an analogical argument in a single proposition, E. Second, even if we can formulate a proposition E that expresses all of that information, it is not appropriate to treat it as evidence.
Groenendijk and Stokhof (1984) take a question to denote, in each world, a single proposition embodying the true exhaustive answer to the question in that world.
This bedrock of U.S. markets was established in the 1933 Securities Act, and the S.E.C. was created, in 1934, largely to enforce a single proposition: that a corporation issuing securities to the public has to come clean about its financial results and outlook.
If it is the proposition itself, however, of which we get the impression that it can be true as well as false, this is due to the fact that we take a part of it to be variable (WL II, 77); in this case again we do not consider a single proposition, but a whole set of propositions, i.e., a propositional form.
In order to simplify matters, we will assume here that an argument has always a single proposition (rather than a whole set of propositions) as its conclusion, and we will identify an argument with an ordered pair <σ, s> consisting of a set σ of propositions (i.e., the set of premises) and a single proposition s (i.e., its conclusion).
Temporary friendships are struck through the common experience of waiting and thinking about a single proposition.
A single proposition also underlies Mr. Bush's determination to destroy the ABM treaty.
The idea is to have a function, which given a proposition and a world yields a set of propositions instead of a single proposition.
One could also violate coherence by only attaching a probability of less than one to a single proposition that is a logical truth, or one could avoid different evaluations by having the same level of confidence in every proposition.
Whereas simultaneously believing and not believing a single proposition is impossible, simultaneously believing and withholding belief from a single proposition is not.
