Ludemann is an atheist, and he never believed in the resurrection, and he isn't a theologian. He's a new testament scholar who knows very well that Jesus was crucified.
“The fact of the death of Jesus as a consequence of crucifixion is indisputable, despite hypothesis of a pseudo-death or deception which are sometimes put forward.”
https://www.amazon.com/What-Really-Happened-Jesus-Resurrection/dp/0664256473
You are woefully uninformed on the subject. A normal person would be so embarrassed at their poor grasp of the subject as to stop the conversation. You must have a massive chip on your shoulder to continue highlighting your ignorance. Continue if you must, I can continue to correct you.