9 lines
195 B
Text
9 lines
195 B
Text
import logic
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open tactic
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theorem tst {A B : Prop} (H1 : A) (H2 : B) : A ∧ B ∧ A :=
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by apply @and.intro;
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apply (show B ∧ A, from and.intro H2 H1);
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apply (show A, from H1)
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check @tst
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