Disambiguation between (i) any of
Theorem:
(defthm fail-bit/digit/hexdig/dot/dash-when-match-slash (implies (tree-match-element-p tree (element-char-val (char-val-insensitive nil "/")) *grammar*) (and (mv-nth 0 (parse-bit (append (tree->string tree) rest-input))) (mv-nth 0 (parse-digit (append (tree->string tree) rest-input))) (mv-nth 0 (parse-hexdig (append (tree->string tree) rest-input))) (mv-nth 0 (parse-ichar #\. (append (tree->string tree) rest-input))) (mv-nth 0 (parse-ichar #\- (append (tree->string tree) rest-input))))))