is a paper abstract or concree?

A paper abstract is a concise summary of a longer piece of writing, such as a research paper, article, or book. It is usually no longer than a few hundred words and provides a brief overview of the main points and arguments presented in the full text. Abstracts are often used to help readers quickly identify and decide whether they are interested in reading the entire piece. They can also be used as a way to index and organize information, as they provide a quick snapshot of the content of a document. In contrast, something that is concrete is tangible, real, or specific, as opposed to abstract or abstract.