anchor.diff:      alpha-char-p
       alphanumericp
       (macro and) (macro (and *))
  +    (macro or (macro (or *)))
       append (append *)
  +    nconc (nconc *)
       (apply 2) (apply *)
       apropos-list
       aref ((aref *) 2) ; caution
  +    svref (svref *)
       arithmetic-error-operands
       arithmetic-error-operation
       array-dimension (array-dimension *)
  
positive.code:     interactive-stream-p
      intern ((intern *) 2)
      intersection ((intersection *) 2)
      invoke-restart
      invoke-restart-interactively
      isqrt
  
negative.code:     boundp
      broadcast-stream-streams
      butlast
      nbutlast
      byte (byte *)
      byte-position
      byte-size
  