True.
Boyle's law was given by Robert Boyle in 1662.
Boyle's law was given for gases, this law states that the pressure (p) and volume (v) of a gas are inversely related to each other at constant temperature. Which means if the volume of the gas increases, then pressure decreases and vice versa, at constant temperature.
p ∝ 1/v .
Result: The given statement is true.