In a very rudimentary sense (practical or pragmatic way), one can think of logic this way: Being reasonable requires one to treat like cases likely; different cases differently. That simple axiom is used all the time in everydayness. — 3017amen
Psychology studies how people think; whereas, logic is concerned with how people should think, if they want to think rationally. — Sam26
It seems that we can assert that something is the case in each of these examples:Keep in mind that statements or propositions are all sentences. However, not all sentences are statements or propositions. Consider the following examples:
1. Who was the third president of the United States?
2. Will you please be seated.
3. Keep quiet!
Each of these are sentences, but none of them assert that something is or is not the case. — Sam26
It seems that we can assert that something is the case in each of these examples:
1. That the person doesn't know who the third president of the United States is.
2. That the person wants us to be seated.
3. That the person wants us to keep quiet. — Harry Hindu
I'd just be changing the scribbles, not the meaning.The point is that the question "Who is the third president of the United States?" is not a true or false statement/proposition. It doesn't make sense to say it's true or false. All you're doing is drawing an inference based on the question. That inference, may be true or false, but you're changing the sentence in order to do that. — Sam26
It seems like you're taking about the meaning of true and false.We are not talking about meaning, but whether the sentence can be said to be true or false. A question just isn't considered a proposition that asserts that something is or is not the case. — Sam26
The point is that the question "Who is the third president of the United States?" is not a true or false statement/proposition. — Sam26
However, the question by itself is not true or false. — Sam26
The question can be rewritten, with no loss of meaning — TheMadFool
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