Nuprl - Proof: l exists cons 2

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At: l exists cons 2

1. T : Type
2. P : T

Prop
3. x : T
4. L : T List
5. P(x)

(

y:T. (y

L) & P(y))

y:T. y = x

L) & P(y)

By:	Analyze -1 THENL [InstConcl [x];ParallelOp -1] THEN ExRepD THEN SimpConcl

Generated subgoals:

None

About:

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