This volume contains a selection of papers presented at LFMTP 2020, the 15th International Workshop on Logical Frameworks and Meta-Languages: Theory and Practice (LFMTP), held the 29-30th of June, 2019, using the Zoom video conferencing tool due to COVID restrictions. Officially the workshop was held in Paris, France, and it was affiliated with IJCAR 2020, FSCD 2020 and many other satellite events. Logical frameworks and meta-languages form a common substrate for representing, implementing and reasoning about a wide variety of deductive systems of interest in logic and computer science. Their design, implementation and their use in reasoning tasks, ranging from the correctness of software to the properties of formal systems, have been the focus of considerable research over the last two decades. This workshop will bring together designers, implementors and practitioners to discuss various aspects impinging on the structure and utility of logical frameworks, including the treatment of variable binding, inductive and co-inductive reasoning techniques and the expressiveness and lucidity of the reasoning process.

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关于逻辑框架和元语言的论文第十五次讲习班：理论与实践

本卷包含精选论文，这些论文在LFMTP 2020，第15届逻辑框架和元语言：理论与实践国际研讨会（LFMTP）上发表，该研讨会于2019年6月29日至30日举行，使用基于COVID的Zoom视频会议工具限制。该研讨会正式在法国巴黎举行，并与IJCAR 2020，FSCD 2020和许多其他卫星活动相关。逻辑框架和元语言构成了表示，实现和推理逻辑和计算机科学中各种感兴趣的演绎系统的通用基础。在过去的二十年中，它们的设计，实现及其在推理任务中的使用，从软件的正确性到形式系统的属性，一直是大量研究的重点。该研讨会将汇集设计师，