Identify dg Lie∞ Chevalley–Eilenberg cohomology with double-complex homology
Establish that the Chevalley–Eilenberg cohomology groups defined for a differential graded Lie∞ algebra L with coefficients in an L-module V by homotopy classes of ∞-morphisms are naturally isomorphic to the homology groups of the Chevalley–Eilenberg double complex, namely H^n_{CE}(L,V) ≃ H^n(Tot(C^{*,*}_{CE}(L,V))).
References
Conjecture 2.3.3. Our definition of the Chevalley-Eilenberg cohomology in the dg case coincides with the homology groups of the Chevalley-Eilenberg double complex HnCE(L, V ) ≃ Hn(Tot(C∗,∗CE(L, V ))) as presented in [24, Definition 2.1].
— Postnikov invariants for rational spaces
(2610.21953 - Chabertier, 15 Oct 2026) in Conjecture 2.3.3, Section 2.3, p. 19