a = 0 & (a ~ 1) & (
b,c:
. (a | (b
c)) 
(a | b) 
(a | c))a:. prime(a) 
Propa,b:. (a ~ b) Prop
c:. a = bca,b:. (a | b) PropA == A FalseA:Prop. (A) Prop| Who Cites prime? | |
| prime | Def prime(a) == a = 0 & (a ~ 1) & (b,c:. (a | (bc)) (a | b) (a | c)) |
| Thm* a:. prime(a) Prop | |
| assoced | Def a ~ b == (a | b) & (b | a) |
| Thm* a,b:. (a ~ b) Prop | |
| divides | Def b | a == c:. a = bc |
| Thm* a,b:. (a | b) Prop | |
| not | Def A == A False |
| Thm* A:Prop. (A) Prop |
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