| i
k & kj }
i,j:. {i...j} 
Type
} == {k:| i k < j }m,n:. {m..n} Type j < k == ij & j<kB == 
B<Ai,j:. (ij) Prop
f:(A
B), g:(BA). InvFuns(A;B;f;g)A,B:Type. (A ~ B) Prop| Some definitions of interest. | |
| int_iseg | | ik & kj } |
| i,j:. {i...j} Type | |
| int_seg | } == {k:| i k < j } |
| m,n:. {m..n} Type | |
| lelt | j < k == ij & j<k |
| le | B == B<A |
| i,j:. (ij) Prop | |
| one_one_corr_2 | f:(AB), g:(BA). InvFuns(A;B;f;g) |
| A,B:Type. (A ~ B) Prop |
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