bigfootsquatch
Purple Belt
There is, actually. That is why I included the Begging the Question link. It's not a logical fallacy in that it's definitely wrong. It's a logical fallacy because your reasoning is incomplete and unsound through unsupported (but expected to be true) implications.
In your very short reply, you imply many things. Your reasoning requires that certain premises be accepted as truth without any reason to.
For example, the very small part of your sentence "what the Yangs envisioned it to be". For any of your reasoning you have in your previous post to have merit, you would first have to know what the Yangs envisioned their Taiji to be. Then, you have to ask whether the first Yang to learn Taiji really sought to create a new style or was he just adapting Chen to his personal preferences. For any of your "Real Yang" (no true scotsman) reasoning to have any use, you have to assume that there is somehow a universal law which states "Yang starts here" and "Yang ends here".
Another example of you begging the question is:
This requires anyone to accept this as true to also accept the implication that any slight deviation from a "standard" not only is "not good fuel" but also that our "engines" is unable to "run properly" on this other form of fuel.
As far as any martial arts is concerned, there are usually two main aspects of "run properly": it's good for our health; it's good for fighting.
For any of your complaints about the slight differences in Yang form to have any merit, you have to establish that there is some main standard in which to move your body. Then you have to prove that this is indeed healthy and also good for fighting with. Then you have to prove that there is no other way to get this optimal state.
Then you have to realise the implications of this if you actually do try to define it. Because then you would have implied that Yang Taiji is the superior martial art. You would have implied that Chen is inferior to "proper" Yang Taiji because, obviously, Chen moves in different ways to Yang. However, if you don't agree with these implications (which I'm quite sure you wouldn't), then you would have to agree that modifications to whatever the "original" Yang is is not a priori bad fuel. Nor can you a priori state that this different fuel is not good for your engine.
And, as others have said, evolution of the martial art happens. On the general scale, you beg the question that Yang is defined by a point in time, rather than defined by its evolution. In much the same way, if you define many things by a point in time rather than its evolution, you beg a whole lot of questions. Most of which are not absolute/universal/objective standards and most of which clearly cannot have complete dominance over another.
So you spent your whole post on trying to pick apart mine?