Q == (P 
Q) & (P Q)
A,B:Prop. (A B) 
Prop
j < k == ij & j < k
== {i:
| 0i } TypeB == 
B < Ai,j:. ij Prop
== {i:| 0 < i } Type 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 | |
| lelt |
Def i j < k == ij & j < k |
| nat |
Def == {i:| 0i } |
| Thm* Type | |
| le |
Def AB == B < A |
| Thm* i,j:. ij Prop | |
| nat_plus |
Def == {i:| 0 < i } |
| Thm* Type | |
| rev_implies |
Def P Q == Q P |
| Thm* A,B:Prop. (A B) Prop | |
| not |
Def A == A False |
| Thm* A:Prop. (A) Prop |
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