Nuprl - Proof: atomic char 3 1

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At: atomic char 3 1

1. a :

(a ~ 1)
3.

. b | a

(b ~ 1)

(b ~ a)
4. b :

5. c :

(b ~ 1)
7.

(c ~ 1)
8. a = b

False

By:	(InstHyp [b] 3) THEN (InstHyp [c] 3) THEN GenExRepD

Generated subgoals:

1   b | a
1 step

2 9. (b ~ 1)  (b ~ a)
  c | a
1 step

3 9. b ~ a
10. c ~ a
  False
6 steps

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