{a..b
}(f) == i:{a..b}. if(i)
a,b:
, f:({a..b}
). {a..b}(f) 
} == {k:| i 
k < j }m,n:. {m..n} Type| ij }n:. {n...} Type
== {i:| 0i } TypeB == 
B<Ai,j:. (ij) Prop| Some definitions of interest. | |
| eval_factorization | {a..b}(f) == i:{a..b}. if(i) |
| a,b:, f:({a..b}). {a..b}(f) | |
| int_seg | } == {k:| i k < j } |
| m,n:. {m..n} Type | |
| int_upper | | ij } |
| n:. {n...} Type | |
| nat | == {i:| 0i } |
| Type | |
| le | B == B<A |
| i,j:. (ij) Prop |
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