Differentiate between Proposition and sentence.

Proposition:
A proposition is a declarative statement that expresses a specific truth value—either true or false. It conveys information about the world, making a claim that can be evaluated for its accuracy. Propositions are abstract entities, representing the meaning or content of a statement independent of its linguistic form. For example, both "The sky is blue" and "El cielo es azul" express the same proposition in different languages.

Sentence:
A sentence, on the other hand, is a grammatical unit of language that consists of words arranged in a specific order to convey meaning. Sentences can be declarative, interrogative, imperative, or exclamatory. While a sentence can be used to express a proposition, not all sentences do so. Some sentences may lack a definite truth value, such as questions or commands. For instance, the sentence "How are you?" is not a proposition because it doesn't make a truth claim, while "The cat is on the mat" is both a sentence and a proposition, as it conveys a specific truth value. In summary, a proposition is the meaning behind a statement, while a sentence is the linguistic expression that conveys that meaning.