| Who Cites fin enum? |
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fin_enum | Def fin_enum(A) == k:  k A |
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| Thm* A:Type. fin_enum(A) Type |
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int_seg | Def {i..j } == {k: | i k < j } |
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| Thm* m,n: . {m..n } Type |
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inv_pair | Def A B == {fg:((A B) (B A))| fg/f,g. InvFuns(A;B;f;g) } |
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| Thm* A,B:Type. A B Type |
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nat | Def == {i: | 0 i } |
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| Thm* Type |
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lelt | Def i j < k == i j & j<k |
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inv_funs_2 | Def InvFuns(A;B;f;g) == ( x:A. g(f(x)) = x) & ( y:B. f(g(y)) = y) |
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| Thm* f:(A B), g:(B A). InvFuns(A;B;f;g) Prop |
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le | Def A B == B<A |
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| Thm* i,j: . (i j) Prop |
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not | Def A == A  False |
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| Thm* A:Prop. ( A) Prop |