2014-11-30 01:29:03 +00:00
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import algebra.ring data.num
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open algebra
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variable A : Type
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variable s : ring A
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2015-05-18 22:45:23 +00:00
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variable H0 : 0 = (0:A) -- since algebra defines notation '0' it should have precedence over num
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variable H1 : 1 = (1:A) -- since algebra defines notation '1' it should have precedence over num
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2014-11-30 01:29:03 +00:00
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example : has_zero.zero A = has_zero.zero A :=
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H0
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example : has_one.one A = has_one.one A :=
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H1
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