Questions & Answers about Den samme regel gælder også her.
Because regel is a common-gender noun in Danish, so the demonstrative/article form used here is den.
- en regel = a rule
- reglen = the rule
- den samme regel = the same rule
In Danish, den/det/de is often used before an adjective when the noun is definite in meaning:
- den samme regel = the same rule
- det store hus = the big house
- de nye bøger = the new books
So den samme regel is a normal definite noun phrase meaning the same rule.
Both can exist, but they do not mean exactly the same thing in all contexts.
- samme regel can sometimes mean same rule in a more general or less explicitly definite way.
- den samme regel is the standard way to say the same rule when referring to a specific rule already known from the context.
In this sentence, Danish strongly prefers den samme regel because it refers to a specific rule that also applies here.