I want to know the answer to the following question:
In order for a treaty to be valid in Brazil, a presidential decree incorporating the treaty into domestic law must be published where in order to be valid?
All the background I'm provided with is that "In practice, this has been interpreted as meaning that the executive branch is free to negotiate and sign a treaty, but its ratification by the president is contingent upon the prior approval of Congress.". Is that enough to answer the question?
Answer: no