(11steps total) PrintForm Definitions DiscreteMath Sections DiscrMathExt Doc
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At: nsub inj lop typing 1 1 2 3

1. a : 
2. b : 
3. f : ab
4. Inj(abf)
5. (a-1)
6. a2 : (a-1)
  f(a2 {x:bx = f(a-1) }


By: {Similarly } Analyze THEN Analyze THEN FwdThru: Hyp:4 on [ f(a2) = f(a-1)  b ]


Generated subgoals:

None

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

(11steps total) PrintForm Definitions DiscreteMath Sections DiscrMathExt Doc