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A Modular Approach to Atomic Logics

This study presents a new way to explore Atomic Logics through modular perspectives.

― 4 min read


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Table of Contents

Today, we encounter many types of logical systems, particularly those that are not classical. These systems serve different purposes across areas like language and knowledge studies. However, researching and proving the properties of these systems can be quite challenging. This study introduces a new approach to these challenges that focuses on a modular perspective.

The Problem with Non-Classical Logics

Non-classical logics emerged as a need to address issues that classical logic cannot effectively handle. Classical logic often fails to explain our everyday reasoning and uncertainties. This led to the creation of various non-classical logics to study specific phenomena that classical methods could not explain fully.

Atomic Logics

This study focuses on a class of non-classical logics known as Atomic Logics. These logics provide a structured way to explore and analyze non-classical systems methodically. The goal was to develop a library for Coq, a proof assistant, to help logicians and researchers prove properties within a shared framework.

Work with Coq Library

The research involved using the mathcomp library to formalize Atomic Logics within Coq. This formalization allows for rigorous proofs and computations in a reliable setting. The project aimed to showcase the properties of these logics through a structured approach.

The Role of Actions

At the core of Atomic Logics is the concept of actions. These actions help define how elements interact within the logic. By examining the actions used by a particular logic, we can understand how it behaves and how we can prove different properties about it.

Challenges in Proof Development

During the proof development process, several challenges arose, particularly around definitions and structures. To work effectively, a clear understanding of what constitutes a connective family and how structures are defined was essential. Addressing these challenges led to a more precise formulation of these concepts.

Display and Cut-elimination Properties

A major focus of this study was on the display property and cut-elimination. The display property refers to how well the system can display its elements, while cut-elimination involves proving that certain inference rules can be eliminated without losing the integrity of the proof system.

Implementation and Formalization

The formalization process involved working with Coq to ensure all definitions and properties were correctly represented. By creating a structured library, it became possible to conduct proofs and validate the properties of Atomic Logics in a manageable way.

Group Actions in Atomic Logics

The study also highlighted the importance of understanding group actions and how they apply to Atomic Logics. Group actions provide a way to understand how different elements of the logic interact and are essential in defining the structure of the logic itself.

The Connection to Lambek Calculus

Throughout the research, connections to existing systems like Lambek Calculus were explored. Lambek Calculus is another logical system that deals with structures in a unique way. By drawing parallels and making comparisons, this study was able to reinforce its findings and demonstrate the wider applicability of Atomic Logics.

Future Directions

As the study concludes, it becomes clear that there are numerous areas for future research. This includes the potential for new connective families and further exploration of how structural rules can be integrated into Atomic Logics. The insights gained from working with Coq and the definitions established could pave the way for broader applications in logical research.

Conclusion

This study on Atomic Logics represents a significant step forward in understanding non-classical logics and their applications. Through careful formalization and practical implementation, it is possible to deepen our understanding of how these systems work and how they can be manipulated. The groundwork laid here will aid in future research, opening doors to new discoveries in logical theory and practice.

Original Source

Title: A Study on Actions for Atomic Logics

Abstract: Nowadays there is a large number of non-classical logics, each one best suited for reasoning about some issues in abstract fields, such as linguistics or epistemology, among others. Proving interesting properties for each one of them supposes a big workload for logicians and computer scientists. We want an approach into this problematic that is modular. To adress this issue, the report shows new insights in the construction of Atomic Logics introduced by Guillaume Aucher. Atomic Logics let us represent very general left and right introduction rules and they come along a new kind of rules based on display logics and residuation. A new approach is taken into the definition of Atomic Logics, which is now built on a class of actions for which we prove cut-elimination. We show that some of them are equivalent to Aucher's Atomic Logics and we prove cut-elimination and Craig Interpolation for a class of them. The introduced theory is applied to the non-associative Lambek Calculus throughout the report. It is accompanied by a computer-checked formalisation of the original syntax in the proof assistant Coq.

Authors: Raül Espejo-Boix

Last Update: 2024-03-11 00:00:00

Language: English

Source URL: https://arxiv.org/abs/2403.07948

Source PDF: https://arxiv.org/pdf/2403.07948

Licence: https://creativecommons.org/licenses/by-sa/4.0/

Changes: This summary was created with assistance from AI and may have inaccuracies. For accurate information, please refer to the original source documents linked here.

Thank you to arxiv for use of its open access interoperability.

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