This gives an idea of in another Gemara we have a case in which God said the halacha was one way and the yeshiva in Heaven said the opposite and they went to Raba bar bar Chana to decide which one was right.
[This seems clearly like Aristotle that there is some kind of connection between the Platonic forms and the individuals that embody them that is more subtle than just as a container for the form,]
For background: the oven of Achnai was not cemented together. Would it still have a category of an oven [that can become unclean]? R Eliezer said no. The Sages disagreed. A voice came from heave and said R Eliezer is right. R. Yehoshua said: Heaven does not decide the halacah. The Torah says to go by the majority of sages.
[The questions here are many; especially since we know the sages can make mistakes as we see in the Torah a special sin offering they must bring in such a case.]