Disambiguation between
Theorem:
(defthm fail-alpha/digit/dash-when-match-conc-rest-comp (implies (and (tree-match-element-p tree (!_ (/_ (1*_ *c-wsp*) *repetition*)) *grammar*) (tree-terminatedp tree)) (mv-nth 0 (parse-alpha/digit/dash (append (tree->string tree) rest-input)))))