| Some definitions of interest. |
|
int_seg | Def {i..j } == {k: | i k < j } |
| | Thm* m,n: . {m..n } Type |
|
invisible_wrapper | Def x == x |
|
iter_via_intseg | Def Iter(f;u) i:{a..b }. e(i)
Def == if a< b f((Iter(f;u) i:{a..b-1 }. e(i)),e(b-1)) else u fi
Def (recursive) |
| | Thm* f:(A![](FONT/dash.png) A![](FONT/dash.png) A), u:A, a,b: , e:({a..b }![](FONT/dash.png) A). (Iter(f;u) i:{a..b }. e(i)) A |
|
lelt | Def i j < k == i j & j<k |
|
lt_int | Def i< j == if i<j true ; false fi |
| | Thm* i,j: . (i< j) ![](FONT/bool.png) |