In UK the law derives its authority, expressly or impliedly, from Parliament.

在英国，法律的权威，明示或着暗示地，来自于议会。

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Precisely when a state law should be deemed impliedly preempted by federal law is an often-complicated legal issue that raises sensitive federalism issues.

FORBES: DOJ Blowing In Political Wind On Federal Preemption

When the Senate consents to a treaty with a given foreign State, does it impliedly authorize future Presidents to make a treaty on the same subject with a new State that is a successor to that given foreign State?

CENTERFORSECURITYPOLICY: Center For Security Policy