2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/27622We show that in the limit of vanishing bare electron effective mass, and in the presence of particle-hole symmetric disorder (which can be of vanishing strength), the composite fermion Hall conductance is constrained to be $-{1\over 2}\frac{e^2}{h}$. We discuss the implications of this results for the existence and nature of a composite Fermi liquid in the lowest Landau level.9 pages, RevTeX, 4 PS figuresCondensed Mattertext