Nuprl - Proof: counting is unique 1

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At: counting is unique 1

1. A : Type
2. m :

3. k :

4. A ~

m
5. A ~

m = k

By:	x,y:. (x ~ y) xy Asserted

Generated subgoals:

1 6. x :
7. y :
8. x ~ y
  xy
3 steps

2 6. x,y:. (x ~ y)  xy
  m = k
1 step

About:

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

1	6. x : 7. y : 8. x ~ y xy	3 steps
2	6. x,y:. (x ~ y) xy m = k	1 step