noun
law of causality
A philosophical or scientific term referring to the principle that every event has a cause.
因果法則は自然科学の基本的な前提である。
The law of causality is a fundamental premise of natural science.
因果関係 refers to a causal relationship between specific events, while 因果法則 is the general principle or law of causality.
Compound of 因果 (cause and effect) and 法則 (law, rule).