Hello all,
I'm having a bit of trouble understanding the difference between a necessary and sufficient "switch" in a flaw question (i.e., a conditional reasoning logical fallacy.) In the LSAT trainer it mentions on pg. 101 that a flaw that mistakes sufficient for necessary is one type of flaw (I.e., it mistakes one way for the only way.) I understand this.
It then goes on to state, however, that "You may notice that this is the 'mirror flaw' of mistaking necessary for sufficient, which we discussed in the last lesson."
I guess my question is: What exactly is the difference between mistaking (necessary for sufficient) and mistaking (sufficient for necessary)? Any examples would be helpful.