 Solution

ID: past-exam-of-the-mathematics-course-of-the-university-of-cambridge/2022/ii/paper-3/3k/a/solution

Codex  0 Created 2026-09-24 Updated 2026-09-25

For binary length-

n

C_{2} \subseteq C_{1}

C_{1} ∣ C_{2} = {(u, u + v) : u \in C_{1}, v \in C_{2}} .

2 n

dim C_{1} + dim C_{2}

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