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lean4/tests/elab_fail/openScoped.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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Lean4

#check epsilon -- Error
noncomputable def foo1 (f g : Nat Nat) : Nat :=
if f = g then 1 else 2 -- Error
section
open Classical
#check epsilon
noncomputable def foo2 (f g : Nat Nat) : Nat :=
if f = g then 1 else 2 -- Ok
end
#check epsilon -- Error
section
open scoped Classical
#check epsilon -- Error
noncomputable def foo3 (f g : Nat Nat) : Nat :=
if f = g then 1 else 2 -- Ok
end