07662aafe3
This PR improves the case splitting strategy used in `grind`, and
ensures `grind` also considers simple `match`-conditions for
case-splitting. Example:
```lean
example (x y : Nat)
: 0 < match x, y with
| 0, 0 => 1
| _, _ => x + y := by -- x or y must be greater than 0
grind
```
11 lines
244 B
Text
11 lines
244 B
Text
example (x n : Nat)
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: 0 < match x with
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| 0 => 1
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| _ => x + n := by
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grind
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example (x y : Nat)
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: 0 < match x, y with
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| 0, 0 => 1
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| _, _ => x + y := by -- x or y must be greater than 0
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|
grind
|