(5steps total) PrintForm Definitions core StandardLIB Doc
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At: iff preserves decidability
  A,B:Prop. Dec(A)  (A  B)  Dec(B)
By: Unfold `decidable` 0 THEN UnivCD

Generated subgoal:

1 1. A : Prop
2. B : Prop
3. A  A
4. A  B
  B  B
4 steps

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

(5steps total) PrintForm Definitions core StandardLIB Doc