- The argument presupposes that which is to be proved.
- The word "refute" means "prove sth to be wrong".
In the first sentence, the phrase "to be" seems to have a meaning of future. However, in the second sentence, the phrase "to be" just seems to explain current status rather than having a meaning of future. This subtle difference makes me confused about how to understand the phrase. What does "to be" exactly mean?