lean4-htt/tests/elab/grind_9485.lean
Garmelon 08eb78a5b2
chore: switch to new test/bench suite (#12590)
This PR sets up the new integrated test/bench suite. It then migrates
all benchmarks and some related tests to the new suite. There's also
some documentation and some linting.

For now, a lot of the old tests are left alone so this PR doesn't become
even larger than it already is. Eventually, all tests should be migrated
to the new suite though so there isn't a confusing mix of two systems.
2026-02-25 13:51:53 +00:00

33 lines
879 B
Text

module
variable (G : Type)
structure G' where p : G
@[ext, grind ext]
theorem ext_ {f g : G' G} (h : f.p = g.p) : f = g := by
cases f
subst h
rfl
variable [Lean.Grind.IntModule G]
instance : Add (G' G) where add f g := ⟨f.p + g.p⟩
@[grind] theorem add_p (f g : G' G) : (f + g).p = f.p + g.p := rfl
instance : Zero (G' G) where zero := ⟨0⟩
@[grind] theorem zero_p : (0 : G' G).p = 0 := rfl
instance : Neg (G' G) where neg x := ⟨-x.p⟩
@[grind] theorem neg_p (f : G' G) : (-f).p = -(f.p) := rfl
example (f g h : G' G) :
f + g + h = f + (g + h) := by
grind -- should work without extra options
example (f g h : G' G) :
f + g + h = f + (g + h) := by
grind [Lean.Grind.AddCommMonoid.add_assoc] -- should work too
example (f g h : G' G) :
f + g + h = f + (g + h) := by
grind -linarith [Lean.Grind.AddCommMonoid.add_assoc] -- should work too