Acceptance for Turing Machines is Undecidable, but Recognizable

Here we show that the A_TM problem is undecidable and recognizable, which is asking if there is a decider for whether an arbitrary Turing Machine accepts an arbitrary input. The proof is by contradiction and diagonalization. What is a Turing Machine? It is a state machine that has a set of states, input, tape alphabet, a start state, exactly one accept state, and exactly one reject state. See    • Turing Machines - what are they? + Formal ...   for more details. Easy Theory Website: https://www.easytheory.org GoFundMe: https://www.gofundme.com/f/easy-theor... Patreon:   / easytheoryyt   Fourthwall: https://easy-theory-llc-shop.fourthwa... Problem Solving channel: ​⁠ @easytheoryprobsolve If you like this content, please consider subscribing to my channel:    / @easytheory