Q == (P 
Q) & (P Q)
A,B:Prop. (A B) 
Prop
B == 
B < Ai,j:
. ij Prop Q == Q PA,B:Prop. (A B) PropA == A FalseA:Prop. (A) Prop| Who Cites iff? | |
| iff |
Def P Q == (P Q) & (P Q) |
| Thm* A,B:Prop. (A B) Prop | |
| le |
Def AB == B < A |
| Thm* i,j:. ij Prop | |
| rev_implies |
Def P Q == Q P |
| Thm* A,B:Prop. (A B) Prop | |
| not |
Def A == A False |
| Thm* A:Prop. (A) Prop |
About:
 |  |  |  |  |  |  |  |  |