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THEN Inst Thm* l1,l2:T List. l1 l2 ||l1||||l2|| [T;L_1;L_2] THEN Inst Thm* l1,l2:T List. l1 l2 ||l1||||l2|| & (i:. i<||l1|| l1[i] = l2[i]) [T;L_1;L_2] THEN InstConcl [i.i] THEN Reduce 0 THEN Try (BackThru Thm* k:. increasing(i.i;k)) |
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2. L_1 : T List 3. L_2 : T List 4. L_1 L_2 5. ||L_1||||L_2|| 6. L_1 L_2 ||L_1||||L_2|| & (i:. i<||L_1|| L_1[i] = L_2[i]) 7. L_1 L_2 (||L_1||||L_2|| & (i:. i<||L_1|| L_1[i] = L_2[i])) 8. j : ||L_1|| L_1[j] = L_2[j] | 1 step |
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