Date: Tue, 11 Oct 1994 09:01:35 EDT From: Larry Horn Subject: Re: Name that syntagm I don't know if the story is apocryphal, but I've always heard it cited (including every time I have talked about "logical" double negation before an audience containing philosophers) along the following lines: [Speaker] "...and while two negations often cancel out to an affirmative, there is no known attestation of two affirmatives reducing to a negative." [Sidney Morgenbesser, in a loud sotto voce] "Yeah, yeah." I've come across the same anecdote a few times in print since including it in my 1989 book "A Natural History of Negation" (p. 554) and in my 1991 CLS paper "Duplex Negatio Affirmat...: The Economy of Double Negation" (plug, plug) and each time the attribution was to Morgenbesser. From what I've heard of Morgenbesser, master of the rapier-like counterexample through many decades at Columbia, and what I know of Kripke, the standard version of the anecdote appears more likely. But was I dere, Charley? No. Larry Horn