👉 Presupposing is a concept in philosophical and logical arguments, which means to assume or assume without evidence. It often precedes an argument by saying that something is true or probable, before presenting its factual basis. For example, if someone says "The sky is blue," they are assuming the existence of blue. Presupposing does not necessarily entail a conclusion, but it can be used as a preliminary step in logical arguments to make the argument more convincing and easier to follow.