yeah, telling someone what they are saying is not true, is really a lot different to calling them a liar.
Yes, it is indeed different.
I remember having a conversation with a friend, and I was like, oh, the south part of that city is all bad neighborhoods and she said "Claire, that's not true." I never once thought she was calling me a liar. But I did think she did not believe that the south end was all bad neighborhoods and I thought she was letting me know she disagreed and that I was wrong.
When I first got on a.r.s,, I was in CofS. And I thought all kinds of shit that wasn't true. Other than what I call the screaming meemies, there were some people who took the time to talk to me about stuff, to disabuse me of - oh, any one of several dozen incorrect beliefs I held. They told me that what I thought was not true. Then there were OTHER people who said I was a liar. When it was the former, I figured they were telling me they did not credit what I had to say. When it was the latter, I figured they were calling me a liar, since, well, they said, "you're a liar".
Otherwise, nobody's ever gonna be able to debate anything anyone's saying that they think is incorrect.
Math class would be a problem, too, come to think of it.
Kid: 15 goes into 150 nine times
Teacher: That's not true, Billy. 15 goes into 150 ten times.
Kid goes running home telling folks teacher called him a liar.
Hey! Maybe that's why I fucking hated Math!!! And how come those English people keep calling it Maths? Is there more than one? If so, I'm toast.