a9821f6437
We should not assume that the arguments at to_revert are sorted by idx. This commit fixes the bug reported at: https://groups.google.com/forum/#!topic/lean-user/x4Zwpou3le0
13 lines
238 B
Text
13 lines
238 B
Text
constant α: Type
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inductive P: α → Prop
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inductive Q: α → α → Prop
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| of: ∀ {a₁ a₂}, Q a₁ a₂
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example {a: α} (P_a: P a) (Q_a: ∃ a', Q a' a): true :=
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begin
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cases Q_a with a' Q_a'_a,
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cases Q_a'_a,
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cases P_a,
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end
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