2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/59834Poincare had conjectured that the fact that closed loops could be shrunk to points on a surface topologically equivalent to the surface of a sphere can be generalised to three (and more) dimensions. After nearly a century the conjecture has remained unproven. We given arguments below to show that the conjecture doesn't work in three dimensions.5 pages, TeXGeneral Mathematicstext