equality专题

LEAN 类型理论之注解(Annotations of LEAN Type Theory)—— 定义上相等(Definitional Equality)

定义上相等(Definitional Equality)指的是意义上相等,即同义,包括了,定义的缩写(Abbreviatory Definition),alpha转换,相同替代(substituting equals for equals)等。下面是LEAN给定的何谓 定义上相等。          注:罗列的推演规则中,如自明其义的,则不多加解析其前提、结果、或特定注解。

【论文研读】Better Together:Unifying Datalog and Equality Saturation

最近研究ReassociatePass整的头大,翻两篇Datalog的论文看看。 今天看的一篇是比较新的文章,23年4月贴到arxiv上的。 本文的主要贡献是提出了egglog,将Datalog和Eqsat结合起来,继承了Datalog的efficient incremental execution, cooperating analysis and lattice 目录 Introducti

990. Satisfiability of Equality Equations(Leetcode每日一题-2020.06.08)

Problem Given an array equations of strings that represent relationships between variables, each string equations[i] has length 4 and takes one of two different forms: “a==b” or “a!=b”. Here, a and b

Temporal table join requires an equality condition on fields of table

报错信息 org.apache.flink.table.api.TableException: Temporal table join requires an equality condition on fields of table ******************* 发生地址 flinksql 与维表关联场景 包括hive的流式join 解决方案在下面 解决方案在下面 解决方案在下

Codeforces Round #685 (Div. 2) C. String Equality(简单思维)

题目链接:https://codeforc.es/contest/1451/problem/C Ashish has two strings a and b, each of length n, and an integer k. The strings only contain lowercase English letters. He wants to convert string a i