5075153c15
This PR adds a convenience for inductive predicates in `grind`. Now,
give an inductive predicate `C`, `grind [C]` marks `C` terms as
case-split candidates **and** `C` constructors as E-matching theorems.
Here is an example:
```lean
example {B S T s t} (hcond : B s) : (ifThenElse B S T, s) ==> t → (S, s) ==> t := by
grind [BigStep]
```
Users can still use `grind [cases BigStep]` to only mark `C` as a case
split candidate.
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| bench | ||
| compiler | ||
| elabissues | ||
| ir | ||
| lean | ||
| pkg | ||
| playground | ||
| plugin | ||
| simpperf | ||
| .gitignore | ||
| common.sh | ||
| lean-toolchain | ||