(defalias 'not 'null)
(defalias 'rplaca 'setcar)
(defalias 'rplacd 'setcdr)
-(defalias 'beep 'ding) ;preserve lingual purtity
+(defalias 'beep 'ding) ;preserve lingual purity
(defalias 'indent-to-column 'indent-to)
(defalias 'backward-delete-char 'delete-backward-char)
(defalias 'search-forward-regexp (symbol-function 're-search-forward))