Free will and determinism can both be true at the same time

Correct to my Opponent:To simplfy, my opponent is correct, I stated free will is to be able to do whatever you want versus determinism which is pre-determined courses of action. I generalized for simplicity. To enage here is sematics, however I shall counter:Free will is the ability to take a course of action absent of certain factors in which obligate the agent in question to take a certain action. Determinism is the opposite of this, and the very definition of both rests on this sharp contrast between the two (factors which compell or not) which seperate them, ergo they can never become the same thing. This is so self-evident due to the very definitions of both philosophical thoughts, it is apriori knowledge. It's like saying all bachelors are unmarried, for example. So if someone told you to rob a store otherwise they would kill your family, that is not free-will, but to do so due to a desire to steal is free-will. The two are clearly different. Predictions under Determinism:My opponent in a philosophical debate states "Let us assume that determinism and free will were both true." However, due to the philosophical nature of this debate, I envoke the law of Occams Razor: that in a debate with two competing hypothesis the one with the least amount of assumptions must triump. Now, philosophy is the appreciation of an idea, but it still requires a certain degree of pragmaticism, which is why someone like Ayn Rand is laughed at in philosophy departments in Universities everywhere. Lets see what empirical proofs we have of free-will shall we? Can I disprove determinism? I actually can, because it's called Quantum Physics and the Uncertainty Principal, which has disproved determinism, because we can never predict where or when an energy flucuation happens to enable electrons to appear and disappear via the Quantum Vacuum. Thus, empirically in the sciences, only free-will exists. Predictions of determinism is impossible under the law of relativity as two events would happen at the exact same time: that the prediction andf the event both take place which is physically impossible. This negates his example of determinism. In fact the computer program analogy is weak due to this: he caims that the programmer tells the computer 1+1=2 and implies that the free will of the human somehow translates into the free-will of the computer to get it wrong (or a limited free-will) but this is illfounded logic, as computers make mathmatical mistakes all the time, we call them glitches. Are they Compatable? My opponent is a compatabilist, which means he believes both free-will and determinism are both true, but lets use an example to see if it works or not. Your a judge, and before you sits a man who is accused with murdering another man. It is the plantiffs assertion the accused is of sound mind for the trial (free-will) whereas the defence asserts his client is a psychopath who was compelled due to mental issue (determinism) to kill compulsovly. Do you convict him due to his acting on free-will? Or do you institutionalize him due to a mental issue? You cannot have both here, that somehow he acted on his own yet was compelled at the same time, to do so is absurd, and the punishment does not alow you to acknowledge both as realistic. Thus, it is my assertion that libertarianism (free-will is true and determinism is false) is actually more correct than compatabilism. Fallacies Committed:False Dichotomy: "my mind was caused to be a certain way by the universal causes and indeed could not have been any other way."The problem is that your mind is not determined strictly by the forces of the universe as my opponent asserts, but also by the neglect of the person. If I bike without a helmet on, and in an accident become mentally disabled, then that is free-will not determinism, the forces of the universe did not intend for me to be that way... "However, once my mind had come into existence, mind exists in a different universe of discourse than that in which the causality happens." ??? What does this mean? From what I can see my opponent really says nothing with substance here, other than his mind somehow has a greater understanding of the world then when he was first born. Free-will and Determinism are not compatable. Quantum Physics has proven this, along with Einsteins theory of reletivity. Thank you!