21 lines
445 B
Text
21 lines
445 B
Text
namespace Ex1
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opaque f : Nat → Nat → Nat
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@[simp] theorem foo : f x (x, y).2 = y := by sorry
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example : f a b ≤ b := by
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fail_if_success simp -- should fail
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set_option diagnostics true in
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simp (config := { index := false })
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end Ex1
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namespace Ex2
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opaque f : Nat → Nat → Nat
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@[simp] theorem foo : f x (no_index (x, y).2) = y := by sorry
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example : f a b ≤ b := by
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simp -- should work since `foo` is using `no_index`
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end Ex2
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