21 lines
513 B
Text
21 lines
513 B
Text
abbreviation Prop := Type.{0}
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inductive nat :=
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| zero : nat
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| succ : nat → nat
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inductive list (A : Type) :=
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| nil {} : list A
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| cons : A → list A → list A
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inductive list2 (A : Type) : Type :=
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| nil2 {} : list2 A
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| cons2 : A → list2 A → list2 A
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inductive and (A B : Prop) : Prop :=
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| and_intro : A → B → and A B
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inductive class {T1 : Type} (R1 : T1 → T1 → Prop) {T2 : Type} (R2 : T2 → T2 → Prop) (f : T1 → T2) :=
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| mk : (∀x y : T1, R1 x y → R2 (f x) (f y)) → class R1 R2 f
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