x(*) else y(
x.x) fi
A:Type, b:
, x:(b
A), y:((
b)A). bif(b; bx.x(bx); by.y(by)) 
A
j == if i=j true ; false fii,j:
. (i=j) 
== {i:| 0
i } Type SA == A 
FalseA:Prop. (A) Prop| Some definitions of interest. | |
| bif | x(*) else y(x.x) fi |
| A:Type, b:, x:(bA), y:((b)A). bif(b; bx.x(bx); by.y(by)) A | |
| eq_int | j == if i=j true ; false fi |
| i,j:. (i=j) | |
| nat | == {i:| 0i } |
| Type | |
| S | |
| not | A == A False |
| A:Prop. (A) Prop |
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