Premise: Pascal's law (also Pascal's principle or the principle of transmission of fluid-pressure) is a principle in fluid mechanics that states that a pressure change occurring anywhere in a confined incompressible fluid is transmitted throughout the fluid such that the same change occurs everywhere. The law was established by French mathematician Blaise Pascal in 1647–48.
Hypothesis: Pascal's law is a principle in fluid mechanics that states that a pressure change occurring anywhere in a confined compressible fluid is transmitted throughout the fluid.