A more thorough explanation:

An abstract juridical act is a type of legal action that can be valid regardless of the lawfulness or existence of the underlying cause. In civil law, examples of abstract juridical acts include negotiable instruments, debt remission, debt acknowledgment, and the novation of an obligation.

For instance, a negotiable instrument like a check can be considered an abstract juridical act because its validity is not dependent on the underlying transaction or agreement between the parties involved. Even if the transaction is later found to be unlawful or invalid, the negotiable instrument remains valid and enforceable.

Overall, an abstract juridical act is a legal action that can stand on its own, independent of the circumstances that led to its creation.