proof ch:13-lie-algebra-expansions@proof-25

open in the book · parts/02-mathematical-methods/13-lie-algebra-expansions.tex:1590

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proof : ch:13-lie-algebra-expansions@proof-25proofproposition 15.42: The Γ-graded commutative algebras15.42corollary 15.11: Semisimplicity criterion15.11definition 15.9: Trace form of an algebra15.9lemma 15.40: The three symmetric cosets are one ℤ_2×ℤ_2-grading15.40corollary 15.46: The sign data, hypothesis (H3), and the count eleven15.46theorem 15.43: The three constants of the classification are the three structure constants of A15.43

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