Yeah, seems like it fails mainly on 1, though I think that depends on whether you accept the meaning of “could not have done otherwise” implied by 2⁄3. But if you accept a meaning that makes 1 true (or, at least, less obviously false), then the argument is no longer valid.
Yeah, seems like it fails mainly on 1, though I think that depends on whether you accept the meaning of “could not have done otherwise” implied by 2⁄3. But if you accept a meaning that makes 1 true (or, at least, less obviously false), then the argument is no longer valid.