10 lines
200 B
Text
10 lines
200 B
Text
import logic
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structure point (A : Type) (B : Type) :=
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mk :: (x : A) (y : B)
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inductive color :=
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red | green | blue
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structure color_point (A : Type) (B : Type) extends point A B :=
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mk :: (c : color)
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