From owner-cse191-sp08-list@LISTSERV.BUFFALO.EDU Mon Feb 4 19:22:42 2008 Date: Mon, 4 Feb 2008 19:22:22 -0500 From: "William J. Rapaport" Subject: 191: MATERIAL CONDITIONAL To: CSE191-SP08-LIST@LISTSERV.BUFFALO.EDU ------------------------------------------------------------------------ Subject: 191: MATERIAL CONDITIONAL ------------------------------------------------------------------------ I understand that some of you are having trouble translating between English and propositional logic when the main connective is ->, the material conditional. If so, be sure to read: Suber, Peer (2002), "Translation Tips", http://www.earlham.edu/~peters/courses/log/transtip.htm especially these tips: #8 Material implication ("Implication" is the word that Suber uses instead of "conditional". Also, Suber uses the "horseshoe" symbol instead of ->) #9 Necessary and sufficient conditions #10 Only if #11 If and only if #12 Just when #13 Even if and also #4: Unless.