When the Catechism of the Council of Trent refers to 'the desire thereof' and the Catechism of Pope Paul X to 'invincible ignorance', these are references to hypothetical and speculative cases only.So they do not contradict Cantate Domino, Council of Florence 1441 on extra ecclesiam nulla salus

 When the Catechism of the Council of Trent refers to 'the desire thereof' and the Catechism of Pope Paul X  to 'invincible ignorance', these are references to hypothetical and speculative cases only.So they do not contradict Cantate Domino, Council of Florence 1441 on extra ecclesiam nulla salus. -Lionel Andrades