Original sentence: In logic and philosophy, the term proposition refers to both (a) the "content" or "meaning" of a meaningful declarative sentence or (b) the pattern of symbols, marks, or sounds that make up a meaningful declarative sentence.The meaning of a proposition includes that it has the quality or property of being either true or false, and as such propositions are called truthbearers
Edited sentence: A proposition is a sentence expressing something true or false.In philosophy, particularly in logic, a proposition is identified ontologically as an idea, concept, or abstraction whose token instances are patterns of symbols, marks, sounds, or strings of words.Propositions are considered to be syntactic entities and also truthbearers