Question: Define the set T recursively with Basis step: (0,0) T Recursive step: if (a, b) e T then (a + 1,b-2) T and (a

Define the set T recursively with Basis step: (0,0) T Recursive step: if (a, b) T then (a + 1,b-2) T and (7) Define the set U recursively with Basis step: (0,0) EU Recursive step: if (a, b) U then (a +1, b-1) U

Define the set T recursively with Basis step: (0,0) T Recursive step: if (a, b) e T then (a + 1,b-2) T and (a -1,6+1) e T. (a) Give five different elements of T. (b) Is (0.-3) in 7? Explain why or why not. (7) Define the set U recursively with Basis step: (0,0) EU Recursive step: if (a, b) U then (a + 1,b-1) EU and (a-4, b+4) U. Use structural induction to prove that if (a, b) U then a + b=0.

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