7 lines
No EOL
174 B
Text
7 lines
No EOL
174 B
Text
import logic
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theorem tst {A B : Bool} (H1 : A) (H2 : B) : A ∧ B ∧ A
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:= by (apply and_intro,
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show A, from H1,
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show B ∧ A, from and_intro H2 H1)
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check @tst |