Final answer:
Contracts involving inventories and receiving acknowledgements of acts under private signature are regulated by contract law and involve legal obligations. The notarial act serves as evidence of the agreement and provides legal protection.
Step-by-step explanation:
Contracts involving inventories and receiving acknowledgements of acts under private signature are part of the legal system and are regulated by contract law. When individuals enter into contracts, they agree to certain terms and conditions and assume legal obligations. The notarial act serves as evidence of the agreement and provides legal protection to the parties involved.