Hahahahahahhaaahahahha.. Wow, you showed him. You have a friend who went to school, therefor a lot of engineers and trained people can prove
That's not what he said...
none of his inventions / designs have ever been proven as fraudulent.
I don't know the validity of his statement, but he did not claim that Tesla's ideas and methods were proven.
Obviously you didn't go to school, or you would understand why they aren't.
One of the signs of a good Engineer is his/her ability to say "I don't know." The truth of the matter is that the laws of thermodynamics are a model that has worked very well for us, but that does not mean that they are the finite laws of the universe.