Argument Against the man concludes that a statement is false because it is made by a certain person. it is similar to the appeal to authority, expect that it is negative rather than positive. In the appeal to authority, the fact that certain person asserts a proposition is taken as evidence that the proposition is true. in the Argument Against the man, however, the fact that a certain person asserts a proposition is taken as evidence that the proposition is false. the argument against the man takes the following form: