We present an operational semantics and type safety proof for multiple inheritance in C++. The semantics models the behaviour of method calls, field accesses, and two forms of casts in C++ class hierarchies exactly, and the type safety proof was formalized and machine-checked in Isabelle/HOL. Ou...
1993-STEP2 这里对均值不等式的证明利用了以 2^n 为跳板的forward-backward induction。最核心的步骤出现在(ii),很多书上都介绍了思路,但是没有给出具体过程。真正写下来才发现跟自己猜测的步骤不同,侥幸和自大…
holocl provides several derived proof calculi that allow for formal derivations establishing the validity of uml/ocl formulae. These formulae arise naturally when checking the consistency of class models, when formally refiningmodels to more concrete ones or when discharging side-conditions from model-...
1.Proofread backwards. 可以倒着一行一行的proofread, 这样让你去看词句表面的意思而不是文章的具体含义 2.Know your own typical mistakes. 在你proofread之前,先列出你常犯的语法错误 3.Proofread for one type of error at a time. 一次性就proofread一个问题,比如你最常用错逗号,那么就专门检查逗号一次,接着...
We give a fast algorithm for finding such proofs. Most of the identities that involve the classical special functions of mathematical physics are readily reducible to the kind of identities treated here. We give many examples of the method, including computer-generated proofs of identities of Mehta...
EXPLOSION-PROOF 1-DIMETHYLAMINO-3-DIMETHYLIMINO-2-ARYLPROP-1-ENE SALTS, PROCESS FOR THEIR PREPARATION, AND THEIR USEManufacturing trimethine flameproof salts sparingly soluble in water, of formula (I) with R = aryl or heteroaryl, ... MLLER Ingrid,HEMMERLING Wolfgang,WINGEN Rainer - WO 被引量...
1. 名词:proof 作为名词时,表示“证据”、“证明”或“校对”。例如: - The police need more proof to arrest the suspect.(警方需要更多证据来逮捕嫌疑人。) - Can you provide proof of your identity?(你能提供身份证明吗?) - The editor is reviewing the proofs for the book.(编辑正在审阅这本书的...
In the addition, the plumbing will consist of; 1) a clothes washer connection, and drain. 2) a utility tub connection and drain. 3) A hose bib connection for outside use. Once I have all the water and drain lines in place, do I have to charge the water lines with water, to pass...
1. ProWritingAid ProWritingAidlooks for grammatical and punctuation mistakes. What I find particularly impressive is its ability to also check for structural issues like repetition, cliches, and a lack of variety in sentence length. It is also my #1 recommended tool for proofreading long-form wo...
We discuss the use of mixed determinant of special form D ( A, n-i; I, i ) for positive definite symmetric matrix A , in particular the operator concavity property of the map f : A D 1/( n-i ) ( A, n-i; I, i ) I together with unital positive linear map Φ : A...