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Interactive Proof Presentations with Cobra

Martin Ring; Christoph Lüth
In: Serge Autexier; Pedro Queresma (Hrsg.). Workshop on User Interfaces for Theorem Provers (UITP2016). User Interfaces for Theorem Provers (UITP-2016), located at International Joint Conference on Automated Reasoning IJCAR 2016, July 2, Coimbra, Portugal, Pages 43-52, Electronic Proceedings in Theoretical Computer Science (EPTCS), Vol. 239, Open Publishing Association, 1/2017.


We present Cobra, a modern code and proof presentation framework, leveraging cutting-edge presentation technology together with a state of the art interactive theorem prover to present formalized mathematics as active documents. Cobra provides both an easy way to present proofs and a novel approach to auditorium interaction. The presentation is checked live by the theorem prover, and moreover allows live changes both by the presenter as well as the audience.