| Some definitions of interest. |
|
hanoi_PEG | Def Peg == {1...3} |
| | Thm* Peg Type |
|
iff | Def P  Q == (P  Q) & (P  Q) |
| | Thm* A,B:Prop. (A  B) Prop |
|
int_iseg | Def {i...j} == {k: | i k & k j } |
| | Thm* i,j: . {i...j} Type |
|
nat | Def == {i: | 0 i } |
| | Thm* Type |
|
nequal | Def a b T == a = b T |
| | Thm* A:Type, x,y:A. (x y) Prop |
|
not | Def A == A  False |
| | Thm* A:Prop. ( A) Prop |