Assertion: discrete symmetry | /r/HasProperty | proved by lüders
Facets:
value: in the early 1950s
type: TEMPORAL
Source sentences:
text: The discrete symmetries C, P and T are connected by the so-called CPT theorem, first proved by Lüders and Pauli in the early 1950s, which states that the combination of C, P, and T is a general symmetry of physical laws.