Question: 7. A Turing Machine with Left Tab L is similar to a normal Turing machine except that its transition function is defined as : Q

7. A Turing Machine with Left Tab L is similar to a normal Turing machine except that its transition function is defined as : Q Q {L, R, T} where T is an extra tape directive (in addition to L and R) that moves the read/write head to the first blank space to the left of the read/write head. (This does not always mean to the left of where the input string started as a blank can be written at any time during computation.) Show that L is Turing-complete.

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