@amszmidt You know what I learned today?
SWE DEN
DEN MARK
Read across, or downward. Weeeeiiiirrrd.
Also, a dual license is not enforceable unless there are contradictions that could determine misalignment. It is easy to just say "I'm following license X" every time it comes up for question.
Choose one license. Stick to it. If you can't find a license that suits your purpose, hire a law firm and make a new one that might withstand a challenge.
You can use dual licenses to protect different chunks of material. But putting any single thing under a two licenses leaves the door wide open for abuse.