(7steps total) PrintForm Definitions core StandardLIB Doc
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At: decidable implies 1 2
1. P : Prop
2. Q : Prop
3. P
4. Q
  (P  Q)  (P  Q)
By: (DNth 2 0) THEN (Analyze 0)

Generated subgoal:

1 5. P  Q
  False
1 step

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

(7steps total) PrintForm Definitions core StandardLIB Doc