[Theo]

3) It is between a man and at least one woman

You've included that as an element of traditional marriage a couple of times. I don't understand the "at least" part. Perhaps you're playing loose with ther term "traditional marriage" to include what's practiced in some cultures not influenced by Christianity?

[Jim Noble]

Perhaps you're playing loose with ther term "traditional marriage" to include what's practiced in some cultures not influenced by Christianity?

I'm making the point that even in polygamous cultures, a man marries only women, and one at a time.