Q == (P 
Q) & (P Q)
A,B:Prop. (A B) 
Propa,b:T. E(a;b) E(b;a)T:Type, E:(T
TProp). (Sym x,y:T. E(x,y)) Propa,b,c:T. E(a;b) E(b;c) E(a;c)T:Type, E:(TTProp). (Trans x,y:T. E(x,y)) Prop| Some definitions of interest. | |
| iff | Q == (P Q) & (P Q) |
| A,B:Prop. (A B) Prop | |
| sym | a,b:T. E(a;b) E(b;a) |
| T:Type, E:(TTProp). (Sym x,y:T. E(x,y)) Prop | |
| trans | a,b,c:T. E(a;b) E(b;c) E(a;c) |
| T:Type, E:(TTProp). (Trans x,y:T. E(x,y)) Prop |
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