Labels:bulletin board | envelope | lodestone | monitor | paper | reckoner OCR: CHAPTER DEcidABility EVERY QUESTION ASOUT REGULAR LANGUAG DECIDAR LE SOME QUESTIONS ABOUT ARE DEL IDAB BUT SOME ARE NOT HALTING PROB LEM JON DECIDAR LE SOME LANGUAG S ARE NOT TURING RECOCNIZABLE MANY Qu ESTIONS ABOnT TuriN MACHINES ARE 224 IDABLE AND SOME ARE NOT RECOGNIEAB LE DECIDAB ILITY LANGUAGES DUESTIONS DCCDAR ESSTIOMS MACHNES
