Q == (P 
Q) & (P Q)
A,B:Prop. (A B) 
PropA:Type, B:(A
Type), p:(a:A
B(a)). 1of(p) AA:Type, B:(AType), p:(a:AB(a)). 2of(p) B(1of(p))| Some definitions of interest. | |
| iff | Def P Q == (P Q) & (P Q) |
| Thm* A,B:Prop. (A B) Prop | |
| pi1 | Def 1of(t) == t.1 |
| Thm* A:Type, B:(AType), p:(a:AB(a)). 1of(p) A | |
| pi2 | Def 2of(t) == t.2 |
| Thm* A:Type, B:(AType), p:(a:AB(a)). 2of(p) B(1of(p)) |
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