How do we know all these things? We could only know them if we could get outside our heads and say; 'Look, there are some space-time points'. Then climb back inside our heads and say 'Yes, my idea of space-time points correspond to reality'.Mosesquine wrote: ↑March 11th, 2018, 7:57 am
(1) All causal processes (i.e. processes of causes and effects) occur in space-time points.
(2) All interactions occur in space-time points.
(3) No soul occurs in space-time points (by the definition of Descartes' version of substance dualism).
Therefore, (4) No soul is in a causal process.
Therefore, (5) No soul is in an interaction.
We know that our mental activities interact with our body performances. This follows that Descartes' version of substance-dualistic-assumption that soul is non-spatio-temporal and body is spatio-temporal is false.
But you can't; you do not know that what you think of as knowledge corresponds to reality. (Indeed, I do not know what a 'space-time point' is supposed to be, nor a 'causal process'. Both seem to be mental abstractions.)
So if you are going to deny dualism, surely the 'cogito' is more immediately presented than 'space-time points'. So, if 'no soul is an interaction' why isn't that because there is nothing for it to interact with? Because there is only soul.
I'm not saying that is the case; I'm pointing out that your 'we know' was a way of begging the question.