Brian,
I think I'm understanding...my problem is I have NEVER studied logic. What I know comes from listening to Bahnsen, reading Bahnsen, reading Van Til and comprehending maybe 35% of what Van Til says
I ordered Copi's intro to logic a few days ago...I'm sure I won't understand a lick of those formulas for a good...oh, I dunno, someday if I can get the hamster back in his wheel.