Nuprl - Proof: l member decomp 1

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At: l member decomp 1

1. T : Type
2. T List
3. x : T
4. l1 : T List
5. l2 : T List
6. nil = (l1 @ [x] @ l2)

False

By:

Obvious

Generated subgoals:

None

About:

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