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At: not list all not iff list exists 1 2 2 1 2 1
1. T: Type
2. P: TProp
3. x:T. Dec(P(x))
4. L: T List
5. u: T
6. v: T List
7. xv.P(x) xv.(P(x))
8. xv.P(x)
9. P(u)
10. xv.(P(x))

False
By: FwdThru 7 [8]
Generated subgoals:

None

About:
listdecidablefunctionuniversepropimpliesfalseall

(23steps) PrintForm Definitions Lemmas list 3 jlc Sections Support(jlc) Doc