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chore: upstream the once-per-file Cache for tactics #213
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Using choice is mostly harmless but it is best to avoid it since Std is intended for computation. In core, it's mostly used to get excluded middle, which only affects Prop
so it's essentially harmless for computation. The use here is in an actual type so potentially not so harmless.
Great! Another dependency of I had a PR against that file in mathlib4, at leanprover-community/mathlib4#7384. Should I port this against std4 now, or is that PR unwanted anyways? I’ll just open the PR at #346 |
This is another component of
exact?
that will need to be upstreamed.