Cubical Type Theory?

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  • redtt

    "Between the darkness and the dawn, a red cube rises!": a proof assistant for cartesian cubical type theory

  • cubical

    An experimental library for Cubical Agda

  • In the case of transpension, it seems like one of the uses is proving something about a path in inductive types by cases on an abstract point along that path. For instance, right now, the way that you prove that a path in A + B is either a path in A or a path in B is to define a family by cases and then transport like here. But I think transpension might let you just do cases on a formal intermediate point directly, which would be much simpler.

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