+The **Zeroth Law** of [Thermodynamics](/wiki/Thermodynamics) establishes the transitive property of thermal equilibrium. It states that if two systems are each in thermal equilibrium with a third, they are in thermal equilibrium with each other, thereby foundational to the definition of [Temperature](/wiki/Temperature).
+## See also
+- [First Law](/wiki/First_Law)
+- [Second Law](/wiki/Second_Law)
+- [Third Law](/wiki/Third_Law)
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