Elsewhere, I've been arguing with a theist who was a proponent of C.S. Lewis' Argument from Reason. Here it is:
1) For an assertion to be capable of truth or falsehood it must come from a rational source (see explanation below).
2) No merely physical material or combination of merely physical materials constitute a rational source. (i.e. anti-panpsychism)
3) Therefore, no assertion that is true or false can come from a merely physical source.
4) The assertions of human minds are capable of truth or falsehood
Conclusion: Therefore, human minds are not a merely physical source (see explanation below).
The argument for the existence of God holds:
(5) A being requires a rational process to assess the truth or falsehood of a claim (hereinafter, to be convinced by argument).
(6) Therefore, if humans are able to be convinced by argument, their reasoning processes must have a rational source.
(7) Therefore, considering element two above, if humans are able to be convinced by argument, their reasoning processes must have a non-physical (as well as rational) source.
(8) Rationality cannot arise out of non-rationality. That is, no arrangement of non-rational materials creates a rational thing.
(9) No being that begins to exist can be rational except through reliance, ultimately, on a rational being that did not begin to exist. That is, rationality does not arise spontaneously from out of nothing but only from another rationality.
(10) All humans began to exist at some point in time.
(11) Therefore, if humans are able to be convinced by argument, there must be a necessary and rational being on which their rationality ultimately relies.
Conclusion: This being we call God.
http://en.wikipedia.org/wiki/Argument_from_reason
There's certainly a flaw with it somewhere, and I've got some ideas of my own, but I'd like to know how you'd all counter it.
1) For an assertion to be capable of truth or falsehood it must come from a rational source (see explanation below).
2) No merely physical material or combination of merely physical materials constitute a rational source. (i.e. anti-panpsychism)
3) Therefore, no assertion that is true or false can come from a merely physical source.
4) The assertions of human minds are capable of truth or falsehood
Conclusion: Therefore, human minds are not a merely physical source (see explanation below).
The argument for the existence of God holds:
(5) A being requires a rational process to assess the truth or falsehood of a claim (hereinafter, to be convinced by argument).
(6) Therefore, if humans are able to be convinced by argument, their reasoning processes must have a rational source.
(7) Therefore, considering element two above, if humans are able to be convinced by argument, their reasoning processes must have a non-physical (as well as rational) source.
(8) Rationality cannot arise out of non-rationality. That is, no arrangement of non-rational materials creates a rational thing.
(9) No being that begins to exist can be rational except through reliance, ultimately, on a rational being that did not begin to exist. That is, rationality does not arise spontaneously from out of nothing but only from another rationality.
(10) All humans began to exist at some point in time.
(11) Therefore, if humans are able to be convinced by argument, there must be a necessary and rational being on which their rationality ultimately relies.
Conclusion: This being we call God.
http://en.wikipedia.org/wiki/Argument_from_reason
There's certainly a flaw with it somewhere, and I've got some ideas of my own, but I'd like to know how you'd all counter it.
'We must respect the other fellow's religion, but only in the sense and to the extent that we respect his theory that his wife is beautiful and his children smart.' H.L. Mencken
'False religion' is the ultimate tautology.
'It is just like man's vanity and impertinence to call an animal dumb because it is dumb to his dull perceptions.' Mark Twain
'I care not much for a man's religion whose dog and cat are not the better for it.' Abraham Lincoln
'False religion' is the ultimate tautology.
'It is just like man's vanity and impertinence to call an animal dumb because it is dumb to his dull perceptions.' Mark Twain
'I care not much for a man's religion whose dog and cat are not the better for it.' Abraham Lincoln
