Add import elements to a schema with no change of functionality?

Hi Folks,

Consider a schema, S1, with targetNamespace, tns1.

Schema S2 has targetNamespace tns2, where tns1 is not equal to tns2.

And so forth.

S1 imports S2 which imports S3 which ...

There are N schemas.

S1 has only one import element -- it imports S2.

Suppose I add to S1 import elements to S3, S4, ..., Sn.

And make no other changes to S1.

Let S1' be the altered S1.

Is S1' = S1?

Does S1' have the same functionality as S1?

/Roger