i
i else -i fi
x:
. |x| 
j == 
j < ii,j:. ij 
j == if i < j true ; false fii,j:. i < j b == if b false else true fib:. b | Who Cites absval? | |
| absval | Def |i| == if 0i i else -i fi |
|
Thm* x:. |x| | |
| le_int |
Def ij == j < i |
| Thm* i,j:. ij | |
| lt_int |
Def i < j == if i < j true ; false fi |
| Thm* i,j:. i < j | |
| bnot |
Def b == if b false else true fi |
| Thm* b:. b |
| Syntax: | |i| | has structure: | absval(i) |
About:
 |  |  |  |  |  |
 |  |  |  |  |