20 lines
293 B
Text
20 lines
293 B
Text
import standard
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using prod
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inductive t1 : Type :=
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| mk1 : t1
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inductive t2 : Type :=
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| mk2 : t2
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theorem inhabited_t1 : inhabited t1
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:= inhabited_intro mk1
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theorem inhabited_t2 : inhabited t2
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:= inhabited_intro mk2
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instance inhabited_t1 inhabited_t2
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theorem T : inhabited (t1 × t2)
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:= _
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