Mathematics and definitions of words are not the same thing by any stretch of the imagination.
One is way more objective than another and in math, there are established facts. 2 + 2 = 4 no matter where you are in the world. With something as objective as math, yes, you can tell if an answer is wrong even if you can’t determine the right one.
With something subjective like determining whether someone is really a Christian, although Jesus has given us guidelines for making that determination, it is not as easy since no one can know another’s heart.
For something that is subjective, to determine that something is wrong, must mean that you have some idea of what right is, some standard by which to compare your definition to; just like you do for something that is objective. It just isn’t as easy.
So if you’re not accepting his definition, why aren’t you? What criteria are you using for a basis of rejecting his?
You couldn’t recognize an analogy if it smacked you in the face like a wet mackeral.
In case you are utterly dense, I was saying that I could disagree with a definition without providing the authoritative definition. The two concepts are not the same.
I AM saying that there are millions of people who believe they are Christians who also believe in evolution. I think if you believe and profess to be a Christian, then you probably are. It might not be your flavor of Christianity, but the notion that only your flavor is the correct one is arrogant at a minimum.