Nuprl - Proof: cons sublist cons 1 1 1 1 2 2

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At: cons sublist cons 1 1 1 1 2 2

1. T : Type
2. x1 : T
3. x2 : T
4. L1 : T List
5. L2 : T List
6. f :

(||L1||+1)

(||L2||+1)
7. increasing(f;||L1||+1)
8.

(||L1||+1). [x1 / L1][j] = [x2 / L2][(f(j))]
9. [x1 / L1][0] = [x2 / L2][(f(0))]
10. f(0) = 0

increasing(

i.f(i+1)-1;||L1||)

By:	Unfold `increasing` 0 THEN Reduce 0 THEN AllHyps (j.Unfold `increasing` j THEN InstHyp [i+1] j)

Generated subgoals:

None

About:

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