Vladimir_Nesov comments on Formulas of arithmetic that behave like decision agents - Less Wrong
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Comments (33)
Your work is wrong. To apply diagonal lemma the definition of phi must be a formula, since you write |- (which is not a formula in PA) I assume you meant it as shorthand for Godels Bew (which is), but you can't existentially quantify Bew like you did in line 3 of the definition.
"Your work is wrong" is an unfair characterization of presence of a minor technical inaccuracy.