13 lines
215 B
Text
13 lines
215 B
Text
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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end
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