“unless stated otherwise” or “unless otherwise stated”?

Question

1. Convention: R^n is always assumed to carry the Euclidean topology, unless stated otherwise.
2. Convention: R^n is always assumed to carry the Euclidean topology, unless otherwise stated.

Which sentence is (more) correct?

Answer 1

Both are all right, but from the following Google Ngram the phrase unless otherwise stated is preferred overall:

You could, however, just choose to use whichever sounds more natural. Although one is more used, if you are writing and want to use a phrase, use it if it matches your narrative voice. Both are okay because, in English, the adverb can go before or after the verb. The exact placement varies by sentence.