| Some definitions of interest. |
|
increasing | Def increasing(f;k) == i: (k-1). f(i)<f(i+1) |
| | Thm* k: , f:( k  ). increasing(f;k) Prop |
|
int_seg | Def {i..j } == {k: | i k < j } |
| | Thm* m,n: . {m..n } Type |
|
nat | Def == {i: | 0 i } |
| | Thm* Type |
|
le | Def A B == B<A |
| | Thm* i,j: . (i j) Prop |