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At: gcd is gcd 1
1. a : 
2. b : 
3. c : 
4. c | a
5. c | b
  c | gcd(a;b)
By: FunElim (gcd(a;b) = y)

Generated subgoal:

1 6. y : 
7. GCD(a;b;y)
  c | y
1 step

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

(3steps total) PrintForm Definitions num thy 1 Sections StandardLIB Doc