8 lines
156 B
Text
8 lines
156 B
Text
example : ∀ a b : nat, a + b = b + a :=
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λ a b, {! _+_ !}
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example : ∀ a b : nat, a + b = b + a :=
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begin
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intros h,
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exact λ x, {! _+_, "lt" !}
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end
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