Question: Are these statements true or false? Provide proof. (1) Every language in CFL is also in P, and there exists a language Le P such

Are these statements true or false? Provide proof. (1) Every language

Are these statements true or false? Provide proof. (1) Every language in CFL is also in P, and there exists a language Le P such that L is not in CFL. (2) Let L1 and L2 be two languages such that L 5m L2 and L, not in REC. In some cases, we might have L2 in REC. (3) Let L1, L2 and L3 be languages such that L1 Sp L2 and L, Sp Ls. Then we have Li SpL3 (symbol Sp indicates the existence of a polynomial time reduction between two languages)

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