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At: decidable list exists 1 2
1. T: Type
2. P: TProp
3. L: T List
4. x:T. Dec(P(x))
5. u: T
6. v: T List
7. Dec(xv.P(x))

Dec(x(u.v).P(x))
By: Rewrite (HigherC list_exists_unrollC) 0
Generated subgoal:

1 Dec(P(u) xv.P(x))

About:
listconsdecidablefunctionuniverseproporall

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