b == if b
True else False fi
b:
. b 
Prop
Q == (P 
Q) & (P Q)A,B:Prop. (A B) Prop
} == {k:
| i 
k < j }m,n:. {m..n} Typex,y:A. Dec(x = y)A:Type. (A Discrete) Prop
== {i:| 0i } Type| Some definitions of interest. | |
| assert | b == if b True else False fi |
| b:. b Prop | |
| iff | Q == (P Q) & (P Q) |
| A,B:Prop. (A B) Prop | |
| int_seg | } == {k:| i k < j } |
| m,n:. {m..n} Type | |
| is_discrete | x,y:A. Dec(x = y) |
| A:Type. (A Discrete) Prop | |
| nat | == {i:| 0i } |
| Type |
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