You don't understand what the data of Ia supernova observations refer to. I tell you this data is the distances and redshifts of these stars measured, for each Ia supernovas scientists measured its two parameters: distance and redshift. And put this data in a Cartesian coordinate system that the horizontal coordinate is the redshift, the vertical coordinate is the distance, and these Ia supernovaes are basically arranged around a curve regularly . Note that the function image of the relation between distance and redshift derived using the modified field equation exactly overlaps with the curve, and obviously, prove strongly that Yang's modification is correct
False. As I already explained, that's not how science works. It can at most prove Yang's modified equation consistent with data, as is the current theory (or at least, you haven't proven otherwise).
But, as I pointed out, Yang uses similar data as input, so I'm not surprised he gets the right answer out.
and perfectly consistent observation,
Exactly. It's consistent with data, not necessarily correct.
so is Yang's application to the data
Read the FAAC-article. There is no mention of any supernova data in the EFE derivation. So you're wrong: Yang didn't use the supernova data in his derivation. Well, unless he left that bit out, which would mean this article would have to be retracted, because it's missing a crucial part. I wonder how it made it past peer-review then...
It's this curve that negates the old theory, because the function image of the relation between distance and redshift derived using the old field equation is quite off the curve.
You haven't shown the curve of the old theory; I've asked you to show it multiple times now.
In order to save the old equation, scientists had to add a term of cosmic constant to the equation, which was actually a modification, but such a modification was unreasonable,
False; as I said before, the cosmological constant is a degree of freedom present in the EFE. That you don't understand the mathematics and logic involved doesn't make it unreasonable.
because the equation with cosmological constant could not bring the geodesic equation back to Newton's law in the spherical symmetric waek gravitational field,
(Except that it does in the low-velocity limit.)
and it makes no sense to have one with out another.
Something that you claimed, but haven't demonstrated.
Besides,the field equation with cosmological constants is not verified in the solar system,
You are being intellectually dishonest again. I've already explained why the cosmological constant hasn't been measured on solar system scales: because the effect is too small. Worse, the solar system is gravitationally locked, meaning you can't measure the universal expansion in it as well. So according to your own argument, Yang is wrong, because the universal expansion has not been verified in the solar system!
Perhaps you should contact Yang, and let him know you've just destroyed this theory with your arguments?
so it is not very serious to apply it directly to the universe.
Just like universal expansion.
In order to justify the emergence of a cosmic constant, scientists have proposed the exotic dark energy, which is to go further and further on the wrong path.
Please look up what dark energy exactly is; it's just a placeholder name for this energy until we figure out what is really is.
Again, In order to solve the motion anomalies in galaxies, scientists proposed so-called dark matter, which is not a rigorous scientific attitude,
More intellectual dishonesty. I've already linked you to the Wikipedia page containing many examples of dark matter evidences. You are simply wrong.
no one doubts that the field equation can go wrong,
As Yang demonstrates.
no one goes back to check if the basic theory has a shortage,
Thousands of students do this every year.
and it is Yang who made up for the lesson.
By introducing mistakes? That's a weird way to try and fix things...
My point of view, Yang is a outstanding scientist
Yes, he's so great, that even heyuhua (who took days to work through a simple integer division problem) has destroyed Yang's work several times now. Look above in my post; he does it there! heyuhua claims that if things cannot be measured on the scale of the solar system, any model that uses it is wrong. Well, universal expansion cannot be measured on the scale of the solar system, Yang's model contains universal expansion, therefore heyuhua has just argued that Yang is wrong.
Perhaps you want to address that?
I'm getting the feeling however there is a parrot in this thread...
respecting authority but not superstitious authority,
According to heyuhua, Yang claims that Einstein was wrong, that Adler was wrong, that Mesner was wrong, that Carroll is wrong, and that tens of thousands of GR-experts are all wrong. Yang is the only one, in over a hundred years, that's right.
and has a highly rigorous scientific attitude,
According to heyuhua, he completely skipped a crucial part in one of this articles (the FAAC-article doesn't refer to any supernova data when Yang derives this EFE). That's a massive oversight, and calls for the article to be retracted. Such sloppiness is the exact opposite of "highly rigorous scientific attitude".
his theory is profound and very practical.
Profoundly wrong, yes. Practical to show who's a crackpot, yes.
The relation between distance and redshift derived out by Yang will be writen into textbooks,
No no no, you're wrong. As heyuhua pointed out: this cannot be measured on the scale of the solar system, therefore it's not real.
conpared with the provious one it is concise and graceful
Sure it's concise: it doesn't even attempt to explain half of the observations that GR does. For example, the anisotropies in the CMB.
Graceful: if introducing mathematical mistakes is graceful, then yes, sure. But as I pointed out to heyuhua earlier: the gracefulness (beauty) of a theory has no bearing on its correctness.
Counter-example: a static universe is an extremely concise and graceful theory. It even passes heyuhua's "solar system scale tests"! Doesn't make it correct, though.