Before revision: An earlier version of Grelling's paradox had been presented by Nelson in a letter to Gerhard Hessenberg on 28 May 1907, where "heterological" is not yet used and "autological words" are defined as "words that fall under the concepts denoted by them" (Peckhaus 1995, p. 277 One can ask: Is "heterological" a heterological word?
After revision: )An earlier version of Grelling's paradox had been presented by Nelson in a letter to Gerhard Hessenberg on 28 May 1907, where "heterological" is not yet used and "autological words" are defined as "words that fall under the concepts denoted by them" (Peckhaus 1995, p. 277 One can ask: Is "heterological" a heterological word?