Question: Suppose that L 1 , L 2 , , Lk form a partition of Sigma ; in other words, their union is Sigma

Suppose that L1, L2,, Lk form a partition of \Sigma ; in other words, their union is \Sigma
and any two are disjoint. Show that if each Li is Turing-recognizable, then each Li is
Turing-decidable

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