(18steps total) PrintForm Definitions NuprlPrimitives Sections NuprlLIB Doc
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At: sfa doc bool vs decidable 1 2 1

1. P : Prop
2. b : 
3. P  b
  P  P


By: BoolCases Hyp:-2


Generated subgoals:

1 2. P  true
  P  P

3 steps
2 2. P  false
  P  P

4 steps

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

(18steps total) PrintForm Definitions NuprlPrimitives Sections NuprlLIB Doc