I believe it first appeared in PT57. Here is the list by PowerScore up until 2016: http://www.powerscore.com/gamesbible/logic-games-rule-substitution/index.cfm
(June 2009 LSAT = PT57)
Hey, so according to the question bank, PT21.S2.Q21 is parallel flaw is that the you're asking about? Since you mentioned that a seems to strengthen the argument
Hi all, I was looking at the spreadsheet for tonight's BR, and it still states that it is for PT 53. Is there a different link for PT57? or we could just type the question numbers (for PT 57) on the same spreadsheet for the BR tonight?