lean4-htt/tests/elab/1380.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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set_option linter.unusedSimpArgs false
variable (n v₁ v₂) (hv₁: v₁ < n + 1) (hv₂: v₂ < n + 1)
theorem foo (_: ¬ Fin.mk v₂ hv₂ = Fin.mk v₁ hv₁ ): True := trivial
/--
trace: [Meta.Tactic.simp.unify] eq_self:1000, failed to unify
?a = ?a
with
⟨v₂, hv₂⟩ = ⟨v₁, hv₁⟩
[Meta.Tactic.simp.rewrite] Fin.mk.injEq:1000:
⟨v₂, hv₂⟩ = ⟨v₁, hv₁⟩
==>
v₂ = v₁
[Meta.Tactic.simp.unify] eq_self:1000, failed to unify
?a = ?a
with
v₂ = v₁
[Meta.Tactic.simp.discharge] Nat.ne_of_gt discharge ✅️
v₁ < v₂
[Meta.Tactic.simp.rewrite] hv:1000:
v₁ < v₂
==>
True
[Meta.Tactic.simp.rewrite] Nat.ne_of_gt:1000:
v₂ = v₁
==>
False
-/
#guard_msgs in
set_option trace.Meta.Tactic.simp true in
example (hv: v₁ < v₂) : True :=
foo n v₁ v₂ _ _
(by simp +decide only [hv, Fin.mk.injEq, Nat.ne_of_gt, Nat.lt_succ_iff])
#check Fin.mk.injEq