Many things that are true also happen to be facts. Remember what a fact is. It's something observable. Something that does not require interpretation to know. There are also things that are not facts, that happen to be true. Evolution is a fact, because it is directly observed. Common descent is true, but it's not a fact, because one has to interpret facts to understand it.
Yep. Common descent is true, but is an inference, not a fact.
According to the dictionary a fact is "a thing that is known or proved to be true."
Yep. Common descent is true, but is an inference, not a fact.
No, as you see, the dictionary is mostly right. In science, inferences cannot be proven to be true. They are only supported to the degree that it's foolish to deny them. A fact in science has a more specific meaning than it does in common usage. It has to be provable.So, you disagree with the dictionary when you say that something can be true, yet not be a fact.
You've gotten confused again, Paul. Read it carefully.Sorry, Barbarian, but the dictionary is right, and you are wrong.
No. It's an inference, not a fact. As Cantor and Goedel proved, truth is a bigger thing than provability. Would you like to learn why? Want to talk about the epistemological issues of truth vs. provability? Let me know if you'd like to learn more about it. It does have some important application to science denial.So, were you, by your phrase, "common descent," referring to something that is true, then you'd be, therein, referring to something that is a fact.