| Who Cites preorder? |
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preorder | Def Preorder(T;x,y.R(x;y)) == Refl(T;x,y.R(x;y)) & (Trans x,y:T. R(x;y)) |
| | Thm* T:Type, R:(T T Prop). Preorder(T;x,y.R(x,y)) Prop |
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trans | Def Trans x,y:T. E(x;y) == a,b,c:T. E(a;b)  E(b;c)  E(a;c) |
| | Thm* T:Type, E:(T T Prop). (Trans x,y:T. E(x,y)) Prop |
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refl | Def Refl(T;x,y.E(x;y)) == a:T. E(a;a) |
| | Thm* T:Type, E:(T T Prop). Refl(T;x,y.E(x,y)) Prop |