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gmalecha / mirror-core

A framework for extensible, reflective decision procedures.
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Set syntax #97

Closed gmalecha closed 8 years ago

gmalecha commented 8 years ago

This is a big change. It restricts reified values to live in sort Set rather than an arbitrary Type. In addition to reducing the number of universes floating around, it makes universe issues arise sooner (i.e. before the terms are used). For example, it surfaced numerous issues with universe polymorphic definitions.

@jesper-bengtson Any objections?

gmalecha commented 8 years ago

The main problem with switching to Set is that we will not be able to embed constants inside the language anymore unless they also live in Set. We could generalize this to make all of the uses of Set be something like Type@{Usyntax}.

The conclusion of this reasoning is to make it universe polymorphic.