Nuprl - Proof: prime nat 3 1 2 1 1 1 2 1

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At: prime nat 3 1 2 1 1 1 2 1

1. x :

2. 2

x
3.

(

i:{2..x

}. i | x)
4. b :

5. |b| | x
6. |b| ~ b
7. |b|

x
8.

|b| & |b|<x)

|b| = 0

By:

Analyze

Generated subgoal:

1 9. |b| = 0
False
1 step

About:

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