lean2/tests/lean/protected_consts.lean
2015-04-19 17:45:58 -07:00

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namespace foo
protected axiom A : Prop
axiom B : Prop
protected constant a : A
constant b : B
protected axioms (A₁ A₂ : Prop)
protected constants (a₁ a₂ : A)
axioms (B₁ B₂ : Prop)
constants (b₁ b₂ : B)
end foo
open foo
check foo.A
check A -- error
check foo.a
check a -- error
check foo.A₁
check foo.A₂
check A₁ -- error
check A₂ -- error
check foo.a₁
check foo.a₂
check a₁ -- error
check a₂ -- error
check foo.B
check B
check foo.b
check b
check foo.b₁
check foo.b₂
check b₁
check b₂
check foo.B₁
check foo.B₂
check B₁
check B₂