11 lines
287 B
Text
11 lines
287 B
Text
exit
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inductive tree.{u} (A : Type.{u}) : Type.{max u 1} :=
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| node : A → forest.{u} A → tree.{u} A
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with forest : Type.{max u 1} :=
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| nil : forest.{u} A
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| cons : tree.{u} A → forest.{u} A → forest.{u} A
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check tree.{1}
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check forest.{1}
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check tree.rec.{1 1}
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check forest.rec.{1 1}
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