20 lines
336 B
Text
20 lines
336 B
Text
exit
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import logic
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open tactic
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section
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set_option pp.universes true
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set_option pp.implicit true
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variable {A : Type}
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variables {a b : A}
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variable H : a = b
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variables H1 H2 : b = a
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check H1
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check H
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check H2
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include H
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theorem test : a = b ∧ a = a
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:= by apply and.intro; apply H; apply eq.refl
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end
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check @test
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