b52edf1259
The new syntax is similar to `matchAlts` and uses `colGe`. The first `|` is not optional anymore.
14 lines
332 B
Text
14 lines
332 B
Text
example (h : x ∨ y) : y ∨ x := by
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cases h with
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| inl hx => first
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| apply Or.inr; assumption
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| apply Or.inl; assumption
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| inr hy => exact Or.inl hy
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example (h : x ∨ y) : y ∨ x := by
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cases h with
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| inl hx => first
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| apply Or.inl; assumption
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| apply Or.inr; assumption
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| inr hy => exact Or.inl hy
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