On Mon, 2009-11-30 at 09:27 -0800, Kerim Aydin wrote: > On Mon, 30 Nov 2009, ais523 wrote: > > On Sun, 2009-11-29 at 09:17 -0800, Ed Murphy wrote: > >> CFJ: If the Chief Whip announced that 2 + 2 = 5, it would be legal > >> to publicly agree. > >> > >> Arguments: The Chief Whip card is possessed by the Lost and Found > >> Department, a non-person. Is this sufficient to force a judgement > >> of UNDECIDABLE? > > > > Trivially TRUE; an impossible statement implies anything. > > But also trivially false, because an impossible statement would also > imply ~anything. -G.
Err, no. The statement "If A, then B" is true when A is false, as is "If A, then not B". Neither of these statements makes the conditional statement itself false, although neither says anything about the truth value of B. -- ais523
