Symbol¶ Scalar Type Code: -6. Scalar Internal Name: symbol. Vector Type Code: 6. Vector Internal Name: Symbol. Represents an interned string. ↪ (type 'thisissymbol) ;; Scalar symbol ↪ (type ['first 'second]) ;; Vector Symbol Symbol can be used to associate a certain value with the variable, using function set ↪ (set t (as 'B8 [true false])) [true false] ↪ t [true false] See Symbol usage as Table column headers.¶