Nuprl Basics - Proof: sfa doc factorial2 wf 1 1 2 1 1 2 2 2 2

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: sfa doc factorial2 wf 1 1 2 1 1 2 2 2 2

1. x :

x1:

. x1<x

x1!

(given (x1 rem 2) = 0)
3. x

0
4. (x rem 2) = 0
5. (x rem 2) = 0
6. 2

x
7. (x-2)!

(given ((x-2) rem 2) = 0)
8. ((x-2) rem 2) = 0

(x-2)!

By:	Rename-1: w THEN Witness7: w

Generated subgoals:

None

About:

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