Question: Let L 1 , L 2 , L 3 be three Turing - recognizable languages over, an alphabet such that they satisfy the following conditions:

Let L1,L2,L3 be three Turing-recognizable languages over, an alphabet such that they satisfy the following conditions:
L1L2L3=**
L1L2=O,L1L3=O,L2L3=O?
Prove that L1 is Turing-decidable. (hint: you can construct a Turing Machine to decides on L1)
Let L 1 , L 2 , L 3 be three Turing -

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