proof ch:13-lie-algebra-expansions@proof-20

open in the book · parts/02-mathematical-methods/13-lie-algebra-expansions.tex:1169

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proof : ch:13-lie-algebra-expansions@proof-20prooftheorem 15.34: The truncation tower is a tower of central extensions15.34definition 15.18: ℤ_2-grading, symmetric coset15.18definition 15.20: Resonant subalgebra15.20definition 14.72: Central extension14.72proposition 15.6: Functoriality15.6proposition 14.73: The extension datum is a 2-cocycle14.73corollary 15.36: Bargmann in 3+1, extended Bargmann in 2+115.36corollary 15.35: Where the central charges are15.35

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proves The truncation tower is a tower of central extensions declared parts/02-mathematical-methods/13-lie-algebra-expansions.tex:1169