I already pointed out there are lots of things not mentioned in the Bible.
Such as Mary's assumption into heaven, for example?
What are your assumptions in asking the question to show you in the Bible that Mary was assumed into Heaven at the end of her Earthly life?
You seem to have missed the point.
You made the argument that because some people's deaths were not mentioned in the Bible, therefore Mary's death is not confirmed. You them use that as evidence (argument from silence) that she was "assumed into heaven."
That argument fails, one, because it's an argument from silence, a logical fallacy, and two, because Scripture says that all men die, and the only exceptions in Scripture are explicitly mentioned as having been taken to heaven directly.
Thus, you still need to provide support for your claim.
It either happened or it didn't happen. If it happened, then we know it happened because somebody witnessed it.
It didn't happen.
And we know it didn't happen because the Bible doesn't say she was, even though men who were arguably less important than her, at least according to your position, were stated to have been taken up into heaven, and in fact says that "all men" die once.
And before you argue "all doesn't always mean literally all" I would remind you that doing so just for Mary's case is special pleading, when I have already pointed out the exceptions.
You want us to believe that Mary just didn't need to have it stated that she was taken directly to heaven?
