John, In Lowell 2, the pseudograph makes its appearance as "the blot", and I'm looking forward to our discussion of that when we come to it!
Gary f. -----Original Message----- From: John F Sowa [mailto:s...@bestweb.net] Sent: 11-Oct-17 23:39 Charles, Gary F, and Edwina, Charles > On what the sheet of assertions represents in EGs, I thought Peirce > said it represents TRUTH... Yes, but that is because a blank sheet in EGs is a graph that says nothing false. When I teach EG logic, I say "Silence is golden". Charles > if we frame a theory of language in terms of EG, that would explain > the fact that language in general presupposes truth. It's best not to read too much into the truth value of the blank. Its meaning in the EG system is determined by the rules of inference and the method of endoporeutic (outside-in evaluation) for determining the truth of any graph. Gary > Peirce does say that the sheet of assertion represents the universe of > discourse... Yes. And his rules of inference preserve truth. So if you start with a blank sheet, which is true in every possible universe of discourse, any statement you derive from a blank sheet must be true in every universe of discourse. In short, the blank is Peirce's only axiom. Any statement derivable from the blank is a theorem. The negation of the blank is an empty oval, which is always false. Peirce called it the pseudograph.
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