X-Mozilla-Status: 0001 Message-ID: <34C65528.67D8@locke.ccil.org> Date: Wed, 21 Jan 1998 15:06:00 -0500 From: John Cowan Organization: Lojban Peripheral X-Mailer: Mozilla 3.0 (WinNT; I) MIME-Version: 1.0 To: Lojban List Subject: Re: Knowledge and Belief References: <199801211848.NAA03435@locke.ccil.org> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-From-Space-Date: Wed Jan 21 15:06:00 1998 X-From-Space-Address: - Rob Zook wrote: > But if you look at a past system, you cannot affect the truth value > of that system from the inside. The inside of the system is no longer > accessible. So you cannot help but take a more inclusive view, which > may include a copy of the previous system with a different truth value > but that makes it obvous that your view cannot be compared the to old > system on the same basis. In theory that may be so. But when I repudiate earlier claims of truth, I am not normally adjusting my truth model, simply my belief structure. I do not say: "'Bantha is a cat' used to be true (by my truth model), but now that I hear Bantha bark and howl, I have changed my truth model so that the statement is false." I simply repudiate my previous belief that Bantha is a cat and keep the same truth model. Otherwise we are in the position of saying that the Sun used to orbit the earth, but now does not, a position that lojbab rightly rejects. (We *can* create such time-dependent metaphysicses, but they are decidedly abnormal.) -- John Cowan http://www.ccil.org/~cowan cowan@ccil.org You tollerday donsk? N. You tolkatiff scowegian? Nn. You spigotty anglease? Nnn. You phonio saxo? Nnnn. Clear all so! 'Tis a Jute.... (FW 16.5)