“证明” 9 宫格 发布于 2025-04-12 # Typst 守序中立混乱善良We have thereforewritten out the proofwith the maximum ofattention to detail.Proof. The proof of thistheorem can be found in[4.18]We now prove theorem2.1Theorem 2.1, Youalways need a base caseto terminate recursion.Proof. See proof ofTheorem 2.1中立¹ We suppress thestraightforward buttiresome details of theproof.We sketch the proof ofthis fact.Proof. This is checkedby C++邪恶Ths reader is invited todo it as an exercise.PROOF. Trival.¹ This was once revealedto me in a dream