Irregular Turing Machine: Difference between revisions

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A [[Turing machine]] is irregular if it cannot be decided using regular [[CTL]], which means there is no regular language, closed under TM operations, that approximates the language of the machine and does not include any halting configuration.<ref>https://discord.com/channels/960643023006490684/960643023530762341/1357307689109028874</ref>
A [[Turing machine]] is irregular if it cannot be decided using regular [[CTL]], which means there is no regular language, closed under TM step, that includes the initial config and excludes all halting configurations.<ref>https://discord.com/channels/960643023006490684/960643023530762341/1357307689109028874</ref>


== Notable examples ==
== Notable examples ==

Latest revision as of 18:31, 21 September 2026

A Turing machine is irregular if it cannot be decided using regular CTL, which means there is no regular language, closed under TM step, that includes the initial config and excludes all halting configurations.[1]

Notable examples

References