Question about Descarte's dualist argument?

Question

I'm referring to the following argument:

I can doubt that my body exists.

I cannot doubt that I exist.

Therefore, I am not my body

If I say this commits the Masked Man Fallacy, what would a Dualist say to that?

Answer 1

the i and the body is not identical for the argument to be masked man. the real i and the possible imaginary body are distinct mutually exclusive objects with no overlapping attributes in descarte, while you may include the i in the body, thus understanding the argument a masked man, but that's not the point that descarte is trying to make. from your understanding, he is saying that the i with or without the body, exist. it's not important whether the i is also the body or vice versa. one object could be attribute of the other, but the one object itself has to exist, independently.

the thought, "i doubt" the doubt can be use against everything, which the resulting statement may or may not be true. so there is a chance that the body doesn't exist suppose i doubt my body is true. however, when the doubt is used against itself, it fails. the doubter exist independently of everything else, including the body. that is the point that descartes is trying to make. the doubting thought and body could both exist, but the doubting thought is distinct from everything else because it's 100% certain, whereas everything else is 99.99999%. the i is certain, whereas the body is not. kinda like the soul is eternal and the flesh passes away in christian thought. the soul could be masked with a flesh body, but descarte is separating the entity into two components: the i and everything else. the ego and its dreams.

for a pure dualist, something else is observing the thought.

Answer 2

I think, therefore I am.