Not true at all. Laws are parameterized. A law only holds if certain conditions (which are often not perfectly known), consistent with the framework of observation, are met. Newton's Laws were not ever proven, they were approximated from limited observations. The approximation of Newton's Laws doesn't work well for the very fast, very dense, very large or very small. (Curiously, of Newton's 3 laws, only the third is really a "law" in the scientific sense - the others are merely clever definitions used to declare what a "force" and "reference frame" is.)
Ohm's Law is an example of law that doesn't actually work at all for most substances. Laws are not "proven" at all.
Interesting. I served in the military as a Precision Measuring Electronics (PMEL) Tech, and callibrated oscilloscopes and other test equipment for the guys who worked on the black boxes in fighter aircraft. I bet those fighter jocks would have felt very comfortable knowing that the entire electronics systems within their aircraft were based on mere imagination. I thought you did not believe in such things as magic.
Didn't we have a previous DU-troll using the phrase "Newton's Laws of Thermodynamics"?