Before revision: 152–278 As Tarski himself noted using other terminology, serious difficulties arise if strings are construed as tokens rather than types in the sense of Pierce's type-token distinction , not to be confused with similar distinctions underlying other type-token distinctions .
After revision: 152–278 As Tarski himself noted using other terminology, serious difficulties arise if strings are construed as tokens rather than types in the sense of Pierce's type-token distinction .