Presumably your last sentence is a mistake, as it doesn't make any sense. I think Night Ripper is getting at this problem:
1) this sentence expresses a proposition
2) this sentence expresses no proposition.

The link is not fixed - it still takes you back to the main page (I am assuming you are trying to link to a specific blog entry).

Don't you mean to say that it does express a proposition but the proposition is false because there is no Mickey Mouse?

Yes, it does. It's called a conjunction. I have no idea how you got the idea that if a sentence contains an "and" with the conjunction meaning, it really does not express a conjunction but instead expresses two simple proposotions. Do you think that one cannot express conjunctions? That would seem to follow from what you wrote, and it is untenable. What a waste of time for logicians when they invented truth tables for conjunctions and stuff. Poor De Morgan!

Hm, I don't know. That there is no Mickey Mouse means that there is no proposition being made, doesn't it? Sentences regarding things of fiction, express propositions?

It doesn't make any sense to me to say that it is a single proposition in a compound sentence.

I interpret:

"The chemical composition of water is H20, and the element hydrogen has an atomic number of 1"

the same as I would interpret:

"The chemical composition of water is H2O.
"The element hydrogen has an atmoic number of 1."

But I will admit I haven't thought this through. So, again, I don't know.

Night Ripper,

Because my post was inconsistent, it leads me to believe "This sentence expresses a proposition" does not in fact express a proposition. But, I will take more time to think it through. Sorry for the confusion.

Though of course the truth conditions of the proposition expressed by the first sentence is similar to the ones for the second and third propositions. In fact, the truth conditions for the first is that it is true iff the second and third proposition are true.

Zetherin;167067 wrote:

That there is no Mickey Mouse means that there is no proposition being made, doesn't it? Sentences regarding things of fiction, express propositions?

I think not. But some people used to think that. That was how they dealt with the present king of France. You may recall that. Their idea was that sentences which subject is missing are meaningless, not false. Same with MM.

It's not clear whether "I think not" is your answer to Zetherin's first question or his second.

The word "meaningful" is ambiguous. I think the sentence, "how has your day been?" is a meaningful sentence. It's certainly more meaningful than the meaningless mess, "Has wings dove off the bridges of Neptune lately?"

The former is meaningful (in one sense of the word, "meaningful"), but the latter isn't meaningful; it's meaningless.

However, just because a sentence is meaningful (can be understood and conveys meaning), that doesn't mean it's cognitively meaningful; hence, that doesn't mean that the sentence is true or false. So, the sentence, "how has your day been?" is meaningful yet not cognitively meaningful.

Not? First question.

Okay, just to be clear, I interpret this to mean that you do think that a proposition is being expressed by the the sentence "Mickey Mouse wears white gloves". This would seem to be consistent with your response to my earlier question about 1+1=x and x=/=2.

Okay, just to be clear, I interpret this to mean that you do think that a proposition is being expressed by the the sentence "Mickey Mouse wears white gloves". This would seem to be consistent with your response to my earlier question about 1+1=x and x=/=2.

The word "meaningful" is ambiguous. I think the sentence, "how has your day been?" is a meaningful sentence. It's certainly more meaningful than the meaningless mess, "Has wings dove off the bridges of Neptune lately?"

The former is meaningful (in one sense of the word, "meaningful"), but the latter isn't meaningful; it's meaningless.

However, just because a sentence is meaningful (can be understood and conveys meaning), that doesn't mean it's cognitively meaningful; hence, that doesn't mean that the sentence is true or false. So, the sentence, "how has your day been?" is meaningful yet not cognitively meaningful.

That's right. 444456666666666666

You do think a proposition is being expressed by "Mickey Mouse wears white gloves"? If so, could you tell me if it is true or false?

Do you believe "Mickey Mouse wears white gloves" expresses a proposition?

What is your stance on all this?

[INDENT]Mickey mouse wears white gloves in reality.

[/INDENT].

If that sentence means anything at all, it means, Something is such that it is Mickey Mouse, and wears white gloves. That sentence expresses a false proposition.

Do you believe "Mickey Mouse wears white gloves" expresses a proposition?

Yes, just as much as "God created the universe". Of course, they are both false since neither God nor Mickey Mouse exist.

Actually there is a slight disanalogy there. Your sentence is in the past tense. That God does not exist not does not imply that it didn't exist before. Otherwise the analogy works.