This leaves room for a law to be falsified.Physical Laws (Principles)
For example, "physical laws" such as the "law of gravity" (which is in fact more a "force" than a "law"), or "scientific laws" attempt to describe the fundamental nature of the universe itself. Laws of mathematics and logic describe the nature of rational thought and inference (Kant's transcendental idealism was precisely a determination of the a priori laws governing human thought before any interaction whatsoever with experience).
Within most fields of study, and in science in particular, the elevation of some principle of that field to the status of "law" usually takes place after a very long time during which the principle is used and tested and verified; though in some fields of study such laws are simply postulated as a foundation and assumed. Mathematical laws are somewhere in between: they are often arbitrary and unproven in themselves, but they are sometimes judged by how useful they are in making predictions about the real world. However, they ultimately rely on arbitrary axioms.