12 lines
258 B
Text
12 lines
258 B
Text
exit
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import logic
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example (a b : Prop) : a ∧ b → b ∧ a :=
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begin
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intros, rewrite and.comm, assumption
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end
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example (a b c : Prop) : a ∧ b ∧ c → b ∧ a ∧ c :=
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begin
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intros, rewrite [-and.assoc, {b ∧ a}and.comm, and.assoc], assumption
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end
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