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Merged
Opened Jul 07, 2019 by Ralf Jung@jungOwner

show that pair construction commutes with taking the core

  • Overview 6
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I do not remember why Core is a typeclass. I could find exactly one other instance, and that's for STSs:

$ rg "Instance.*\bCore\b"
theories/algebra/cmra.v
182:Instance core' `{PCore A} : Core A := λ x, default x (pcore x).

theories/algebra/sts.v
199:Instance sts_core : Core (car sts) := λ x,

Might be worth just defining core x := default x (pcore x)?

Edited Jul 13, 2019 by Ralf Jung
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Reference: iris/iris!286
Source branch: ralf/pair-core

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