Density is at most the spread of the square

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/136097We show the following result: Assume B is an infinite Boolean Algebra and lambda=d(B). Then s(B*B)$, i.e. s(uf(B)xuf(B))>= lambda$ (if lambda limit - obtained)LogicDensity is at most the spread of the squaretext