Question: Use diagonalization to argue that the language = {#| }(the set of all turing machine, input pair (M,x) such that turing machine M loops forever

Use diagonalization to argue that the language = {#| }(the set of all turing machine, input pair (M,x) such that turing machine M loops forever on input x) is 2 undecidable, further argue that is not even semi-decidable. You are not supposed to rely on any theories unless being backed up with proper proofs.

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