11 lines
244 B
Text
11 lines
244 B
Text
o : N
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z : N
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eq a gz : Prop
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num2.lean:24:8: error: failed to synthesize type class instance for
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⊢ has_zero G
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num2.lean:24:8: error: invalid type ascription, expression has type
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N
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but is expected to have type
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G
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eq gz a : Prop
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eq b z : Prop
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