Nuprl - Proof: int segs from base by upper ind 1 2

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At: int segs from base by upper ind 1 2

1. P :

Prop
2. a :

b:{...a}. P(a,b)
4.

b:{a+1...}. (

c:{a..b

}. P(a,c))

P(a,b)
5.

b:{a...}. P(a,b)
6. b :

P(a,b)

By:	Decide: ba

Generated subgoals:

1 7. ba
P(a,b)
1 step

2 7. ba
P(a,b)
1 step

About:

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