Final answer:
A deductive argument that succeeds in providing logically conclusive support is said to be valid.
Step-by-step explanation:
A deductive argument that succeeds in providing logically conclusive support is said to be valid. Validity is a property of deductive arguments where the structure of the argument guarantees that if the premises are true, then the conclusion must be true. It is important to note that a valid argument does not necessarily have true premises or conclusions, but rather its structure ensures the truth of the conclusion if the premises are true.