} == {k:
| i 
k < j }
m,n:. {m..n} 
Type
== {i:| 0i } Type
A == A 
FalseA:Prop. (A) Prop
x,n. n+f(x))n:, f:(n
). sum(f(x) | x < n) | Some definitions of interest. | |
| int_seg | } == {k:| i k < j } |
| m,n:. {m..n} Type | |
| nat | == {i:| 0i } |
| Type | |
| not | A == A False |
| A:Prop. (A) Prop | |
| sum | x,n. n+f(x)) |
| n:, f:(n). sum(f(x) | x < n) |
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