lean4-htt/tests/elab/5455.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

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variable {α : Type}
theorem test1 {n : Nat} {f : Fin n → α} : False := by
let c (i : Fin n) : Nat := i
let d : Fin n → Nat × Nat := fun i => (c i, c i + 1)
have : ∀ i, (d i).2 ≠ c i * 2 := by
fail_if_success simp only -- should not unfold `d` or `i`
guard_target =ₛ ∀ (i : Fin n), (d i).snd ≠ c i * 2
simp +zetaDelta only -- `d` and `i` are now unfolded
guard_target =ₛ ∀ (i : Fin n), i.val + 1 ≠ i.val * 2
sorry
sorry
opaque f : Nat → Nat
axiom f_ax (x : Nat): f (f x) = x
theorem test2 (a : Nat) : False := by
let d : Nat → Nat × Nat := fun i => (f a, i)
have : f (d 1).1 = a := by
fail_if_success simp only [f_ax] -- f_ax should be applicable
simp +zetaDelta only [f_ax] -- f_ax is applicable if zetaDelta := true
done
sorry