Nuprl - Proof: xor vs neg n dec 1

IF YOU CAN SEE THIS go to /sfa/Nuprl/Shared/Xindentation_hack_doc.html
At: xor vs neg n dec 1

1. P : Prop
2. Q : Prop

P XOR Q

P) & Dec(P)

By:	Analyze THEN Analyze

Generated subgoals:

1 3. P XOR Q
  (Q  P) & Dec(P)
6 steps

2 3. (Q  P) & Dec(P)
  P XOR Q
3 steps

About:

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

1	3. P XOR Q (Q P) & Dec(P)	6 steps
2	3. (Q P) & Dec(P) P XOR Q	3 steps