Nuprl - Proof: atomic char 3 1 3 1 1 1 1

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: atomic char 3 1 3 1 1 1 1

1. a :

(a ~ 1)
3.

. b | a

(b ~ 1)

(b ~ a)
4. b :

5. c :

(b ~ 1)
7.

(c ~ 1)
8. 0 = b

c
9. b ~ a
10. c ~ a
11. (a

1) ~ (a

c)
12. a = 0

False

By:	(InvertRel 8) THEN (FwdThru Thm* a,b:. ab = 0 a = 0 b = 0 [8]) THEN (Analyze -1)

Generated subgoals:

None

About:

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html