2014-08-25 02:58:48 +00:00
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import logic data.prod
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2014-09-03 23:00:38 +00:00
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open prod
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2014-07-07 21:41:14 +00:00
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inductive t1 : Type :=
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2014-08-22 22:46:10 +00:00
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mk1 : t1
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2014-07-07 21:41:14 +00:00
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inductive t2 : Type :=
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2014-08-22 22:46:10 +00:00
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mk2 : t2
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2014-07-07 21:41:14 +00:00
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theorem inhabited_t1 : inhabited t1
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2014-09-04 23:36:06 +00:00
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:= inhabited.mk t1.mk1
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2014-07-07 21:41:14 +00:00
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theorem inhabited_t2 : inhabited t2
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2014-09-04 23:36:06 +00:00
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:= inhabited.mk t2.mk2
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2014-07-07 21:41:14 +00:00
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2015-01-25 04:23:21 +00:00
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attribute inhabited_t1 [instance]
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attribute inhabited_t2 [instance]
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2014-07-07 21:41:14 +00:00
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theorem T : inhabited (t1 × t2)
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:= _
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