| Who Cites isect two? |
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isect_two | Def A B == i: 2. if i= 0 A else B fi |
| | Thm* A,B:Type. A B Type |
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eq_int | Def i= j == if i=j true ; false fi |
| | Thm* i,j: . (i= j)  |
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int_seg | Def {i..j } == {k: | i k < j } |
| | Thm* m,n: . {m..n } Type |
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lelt | Def i j < k == i j & j<k |
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le | Def A B == B<A |
| | Thm* i,j: . (i j) Prop |
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not | Def A == A  False |
| | Thm* A:Prop. ( A) Prop |