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Full Idea
Either J and the judgment 'I say that J is true' are the same for all judgments or for none. But if identical, their denials are identical. These are 'J is not true' and 'I do not say that J is true', which are different. No judgment judges itself true.
Gist of Idea
That a judgement is true and that we judge it true are quite different things
Source
Charles Sanders Peirce (Criterion of Validity in Reasoning [1903], I)
Book Ref
Peirce,Charles Sanders: 'Philosophical Writings of Peirce', ed/tr. Buchler,Justus [Dover 1940], p.121
A Reaction
If you are going to espouse the Ramseyan redundancy view of truth, you had better make sure you are not guilty of the error which Peirce identifies here.
| 14777 | That a judgement is true and that we judge it true are quite different things [Peirce] |
| 19468 | The property of truth in 'It is true that I smell violets' adds nothing to 'I smell violets' [Frege] |
| 14176 | "The death of Caesar is true" is not the same proposition as "Caesar died" [Russell] |
| 3750 | "It is true that x" means no more than x [Ramsey] |
| 19197 | Truth can't be eliminated from universal claims, or from particular unspecified claims [Tarski] |
| 11074 | 'It is true that this follows' means simply: this follows [Wittgenstein] |
| 9011 | Truth is redundant for single sentences; we do better to simply speak the sentence [Quine] |
| 2347 | Asserting the truth of an indexical statement is not the same as uttering the statement [Putnam] |
| 19153 | Truth is basic and clear, so don't try to replace it with something simpler [Davidson] |
| 6335 | The redundancy theory cannot explain inferences from 'what x said is true' and 'x said p', to p [Horwich] |
| 12439 | Truth is dispensable, by replacing truth claims with the sentence itself [Azzouni] |
| 21640 | 'It's true that Fido is a dog' conjures up a contrast class, of 'it's false' or 'it's unlikely' [Hofweber] |
| 14008 | The redundancy theory conflates metalinguistic bivalence with object-language excluded middle [Bourne] |