Any Catholic theologian will tell you that Islam is a Catholic heresy. Mohammad rejected the pagan religion of his day and was strongly influnced by Catholicism. He borrowed his major doctrines from Catholicism and rejected the ones he didn't like. He borrowed the Catholic scriptures but interpreted them as he chose and added some more doctrines of his own. Yes, but that is not what the catechism is saying. It is saying the opposite. It is clearly not a heresy according to the catechism. This is dangerous stuff and it's A ANTI-CHRIST LIE.