Question: A Turing machine with left reset is similar to an ordinary Turing machine, but the transition function has the form : Q

A Turing machine with left reset is similar to an ordinary Turing machine, but the transition function has the form

δ : Q × Γ → Q × Γ × {R,RESET}.

If (q, a) = (r, b,RESET), when the machine is in state q reading an a, the machine’s head jumps to the left-hand end of the tape after it writes b on the tape and enters state r. Note that these machines do not have the usual ability to move the head one symbol left. Show that Turingmachines with left reset recognize the class of Turing-recognizable languages.

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